import java.util.*;
import java.util.zip.*;
import java.util.List;
import java.util.regex.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.locks.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.table.*;
import java.io.*;
import java.net.*;
import java.lang.reflect.*;
import java.lang.ref.*;
import java.lang.management.*;
import java.security.*;
import java.security.spec.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.math.*;


class main {
public static void main(final String[] args) throws Exception {
  Map map;
  { long _startTime_0 = sysNow(); try {  
    map = getLearnedCharacters2();
  } finally { _startTime_0 = sysNow()-_startTime_0; saveTiming(_startTime_0); } }
  print("Got " + l(map) + " character images.");
}
static long sysNow() {
  return System.nanoTime()/1000000;
}
static volatile StringBuffer local_log = new StringBuffer(); // not redirected
static volatile StringBuffer print_log = local_log; // might be redirected, e.g. to main bot

// in bytes - will cut to half that
static volatile int print_log_max = 1024*1024;
static volatile int local_log_max = 100*1024;
//static int print_maxLineLength = 0; // 0 = unset

static boolean print_silent; // total mute if set

static Object print_byThread_lock = new Object();
static volatile ThreadLocal<Object> print_byThread; // special handling by thread - prefers F1<S, Bool>
static volatile Object print_allThreads;

static void print() {
  print("");
}

static <A> A print(String s, A o) {
  print(s + o);
  return o;
}

// slightly overblown signature to return original object...
static <A> A print(A o) {
  ping();
  if (print_silent) return o;
  String s = String.valueOf(o) + "\n";
  print_noNewLine(s);
  return o;
}

static void print_noNewLine(String s) {
  
  Object f = print_byThread == null ? null : print_byThread.get();
  if (f == null) f = print_allThreads;
  if (f != null)
    if (isFalse(f instanceof F1 ? ((F1) f).get(s) : callF(f, s))) return;
  

  print_raw(s);
}

static void print_raw(String s) {
  s = fixNewLines(s);
  // TODO if (print_maxLineLength != 0)
  StringBuffer loc = local_log;
  StringBuffer buf = print_log;
  int loc_max = print_log_max;
  if (buf != loc && buf != null) {
    print_append(buf, s, print_log_max);
    loc_max = local_log_max;
  }
  if (loc != null) 
    print_append(loc, s, loc_max);
  System.out.print(s);
}

static void print(long l) {
  print(String.valueOf(l));
}

static void print(char c) {
  print(String.valueOf(c));
}

static void print_append(StringBuffer buf, String s, int max) {
  synchronized(buf) {
    buf.append(s);
    max /= 2;
    if (buf.length() > max) try {
      int newLength = max/2;
      int ofs = buf.length()-newLength;
      String newString = buf.substring(ofs);
      buf.setLength(0);
      buf.append("[...] ").append(newString);
    } catch (Exception e) {
      buf.setLength(0);
    }
  }
}
static Map<String, BWImage> getLearnedCharacters2() {
  Set<String> md5s = requiredPhraseImageMD5s();

  HashMap<String,BWImage> md5ToImage = new HashMap();
  int nFound = 0;
  { final Map<String, File> __4 = screenClipFiles(); for (String md5 : keys( __4)) { File f =__4.get(md5); 
    if (!md5s.contains(md5))
      continue; // with print("Skipping clip: " + md5);
    ++nFound;
      
    BWImage img = loadBWImage(f);
    //md5ToImage.put(md5, img);
    for (BWImage cImg : horizontalAutoSplitToImages(img)) {
      String cMD5 = ocrMD5OfBWImage(cImg);
      md5ToImage.put(cMD5, cImg);
    }
  }
  
  }print("Loaded phrase images: " + nFound + "/" + l(md5s));
  return md5ToImage;
}
static Map<Thread, Boolean> _registerThread_threads = newWeakHashMap();

static Thread _registerThread(Thread t) {
  _registerThread_threads.put(t, true);
  return t;
}

static void _registerThread() { _registerThread(Thread.currentThread()); }
static ThreadLocal<Long> saveTiming_last = new ThreadLocal();

static void saveTiming(long ms) {
  print(ms + " ms");
  saveTiming_noPrint(ms);
}

static void saveTiming_noPrint(long ms) {
  saveTiming_last.set(ms);
}
static int l(Object[] a) { return a == null ? 0 : a.length; }
static int l(boolean[] a) { return a == null ? 0 : a.length; }
static int l(byte[] a) { return a == null ? 0 : a.length; }
static int l(int[] a) { return a == null ? 0 : a.length; }
static int l(float[] a) { return a == null ? 0 : a.length; }
static int l(char[] a) { return a == null ? 0 : a.length; }
static int l(Collection c) { return c == null ? 0 : c.size(); }
static int l(Map m) { return m == null ? 0 : m.size(); }
static int l(CharSequence s) { return s == null ? 0 : s.length(); } static long l(File f) { return f == null ? 0 : f.length(); }

static int l(Object o) {
  return o == null ? 0
    : o instanceof String ? l((String) o)
    : o instanceof Map ? l((Map) o)
    : o instanceof Collection ? l((Collection) o)
    : (Integer) call(o, "size");
}






static String fixNewLines(String s) {
  return s.replace("\r\n", "\n").replace("\r", "\n");
}
static volatile boolean ping_pauseAll;
static int ping_sleep = 100; // poll pauseAll flag every 100

static volatile boolean ping_anyActions;
static Map<Thread, Object> ping_actions = newWeakHashMap();


// always returns true
static boolean ping() {
  if (ping_pauseAll  || ping_anyActions ) ping_impl();
  return true;
}

// returns true when it slept
static boolean ping_impl() { try {
  if (ping_pauseAll && !isAWTThread()) {
    do
      Thread.sleep(ping_sleep);
    while (ping_pauseAll);
    return true;
  }
  
  
  if (ping_anyActions) {
    Object action;
    synchronized(ping_actions) {
      action = ping_actions.get(currentThread());
      if (action instanceof Runnable)
        ping_actions.remove(currentThread());
      if (ping_actions.isEmpty()) ping_anyActions = false;
    }
    
    if (action instanceof Runnable)
      ((Runnable) action).run();
    else if (eq(action, "cancelled"))
      throw fail("Thread cancelled.");
  }
  
  
  return false;
} catch (Exception __e) { throw rethrow(__e); } }
static <A, B> Set<A> keys(Map<A, B> map) {
  return map == null ? new HashSet() : map.keySet();
}

static Set keys(Object map) {
  return keys((Map) map);
}






static WeakHashMap<Class, ArrayList<Method>> callF_cache = new WeakHashMap();


  static <A> A callF(F0<A> f) {
    return f == null ? null : f.get();
  }



  static <A, B> B callF(F1<A, B> f, A a) {
    return f == null ? null : f.get(a);
  }


static Object callF(Object f, Object... args) { try {
  if (f instanceof String)
    return callMC((String) f, args);
  if (f instanceof Runnable) {
    ((Runnable) f).run();
    return null;
  }
  if (f == null) return null;
  
  Class c = f.getClass();
  ArrayList<Method> methods;
  synchronized(callF_cache) {
    methods = callF_cache.get(c);
    if (methods == null)
      methods = callF_makeCache(c);
  }
  
  int n = l(methods);
  if (n == 0) {
    
    throw fail("No get method in " + getClassName(c));
  }
  if (n == 1) return invokeMethod(methods.get(0), f, args);
  for (int i = 0; i < n; i++) {
    Method m = methods.get(i);
    if (call_checkArgs(m, args, false))
      return invokeMethod(m, f, args);
  }
  throw fail("No matching get method in " + getClassName(c));
} catch (Exception __e) { throw rethrow(__e); } }

// used internally
static ArrayList<Method> callF_makeCache(Class c) {
  ArrayList<Method> l = new ArrayList();
  Class _c = c;
  do {
    for (Method m : _c.getDeclaredMethods())
      if (m.getName().equals("get")) {
        m.setAccessible(true);
        l.add(m);
      }
    if (!l.isEmpty()) break;
    _c = _c.getSuperclass();
  } while (_c != null);
  callF_cache.put(c, l);
  return l;
}
static boolean isFalse(Object o) {
  return eq(false, o);
}
static <A, B> Map<A, B> newWeakHashMap() {
  return _registerWeakMap(synchroMap(new WeakHashMap()));
}
static String ocrMD5OfBWImage(BWImage img) {
  return rgbMD5(img.toRGB());
}
static Object call(Object o) {
  return callFunction(o);
}

// varargs assignment fixer for a single string array argument
static Object call(Object o, String method, String[] arg) {
  return call(o, method, new Object[] {arg});
}

static Object call(Object o, String method, Object... args) {
  try {
    if (o instanceof Class) {
      Method m = call_findStaticMethod((Class) o, method, args, false);
      m.setAccessible(true);
      return invokeMethod(m, null, args);
    } else {
      Method m = call_findMethod(o, method, args, false);
      m.setAccessible(true);
      return invokeMethod(m, o, args);
    }
  } catch (Exception e) {
    throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);
  }
}

static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
  Class _c = c;
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (!m.getName().equals(method)) {
        if (debug) System.out.println("Method name mismatch: " + method);
        continue;
      }

      if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug))
        continue;

      return m;
    }
    c = c.getSuperclass();
  }
  throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName());
}

static Method call_findMethod(Object o, String method, Object[] args, boolean debug) {
  Class c = o.getClass();
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (m.getName().equals(method) && call_checkArgs(m, args, debug))
        return m;
    }
    c = c.getSuperclass();
  }
  throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName());
}

private static boolean call_checkArgs(Method m, Object[] args, boolean debug) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length) {
    if (debug)
      System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
    return false;
  }
  for (int i = 0; i < types.length; i++)
    if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
      if (debug)
        System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
      return false;
    }
  return true;
}
static HashSet<String> requiredPhraseImageMD5s() {
  HashSet<String> md5s = new HashSet();
  for (String s : scanLog_iterator(glyphTeachLog())) {
    s = afterSquareBracketStuff(s);
    Pair<String, String> p = splitAroundColon_toPair(s);
    if (p == null) continue;
    addUnlessNull(md5s, regexpFirstGroupIC("Image (" + md5Regexp() + ")", p.a));
  }
  return md5s;
}
static Map<String, File> screenClipFiles() {
  Map<String,File> map = new HashMap();
  for (File f : filesEndingWith(screenClipsDir(), ".png"))
    map.put(toLower(dropSuffix(".png", f.getName())), f);
  return map;
}
static List<BWImage> horizontalAutoSplitToImages(BWImage img) {
  List<BWImage> l = new ArrayList();
  for (Rect r : horizontalAutoSplit2ThenAutoCrop(img))
    l.add(img.clip(r));
  return l;
}
static BWImage loadBWImage(String snippetIDOrURL) {
  return new BWImage(loadBufferedImage(snippetIDOrURL));
}

static BWImage loadBWImage(File f) {
  return new BWImage(loadBufferedImage(f));
}


static Map synchroMap() {
  return synchroHashMap();
}

static <A, B> Map<A, B> synchroMap(Map<A, B> map) {
  return Collections.synchronizedMap(map);
}
static Object callFunction(Object f, Object... args) {
  return callF(f, args);
}
static File glyphTeachLog() {
  return javaxDataDir("Image Recognition/glyph-teaching.txt");
}
static HashMap<String, List<Method>> callMC_cache = new HashMap();
static String callMC_key;
static Method callMC_value;

// varargs assignment fixer for a single string array argument
static Object callMC(String method, String[] arg) {
  return callMC(method, new Object[] {arg});
}

static Object callMC(String method, Object... args) { try {
  Method me;
  if (callMC_cache == null) callMC_cache = new HashMap(); // initializer time workaround
  synchronized(callMC_cache) {
    me = method == callMC_key ? callMC_value : null;
  }
  if (me != null) try {
    return invokeMethod(me, null, args);
  } catch (IllegalArgumentException e) {
    throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e);
  }

  List<Method> m;
  synchronized(callMC_cache) {
    m = callMC_cache.get(method);
  }
  if (m == null) {
    if (callMC_cache.isEmpty()) {
      callMC_makeCache();
      m = callMC_cache.get(method);
    }
    if (m == null) throw fail("Method named " + method + " not found in main");
  }
  int n = m.size();
  if (n == 1) {
    me = m.get(0);
    synchronized(callMC_cache) {
      callMC_key = method;
      callMC_value = me;
    }
    try {
      return invokeMethod(me, null, args);
    } catch (IllegalArgumentException e) {
      throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e);
    }
  }
  for (int i = 0; i < n; i++) {
    me = m.get(i);
    if (call_checkArgs(me, args, false))
      return invokeMethod(me, null, args);
  }
  throw fail("No method called " + method + " with matching arguments found in main");
} catch (Exception __e) { throw rethrow(__e); } }

static void callMC_makeCache() {
  synchronized(callMC_cache) {
    callMC_cache.clear();
    Class _c = (Class) mc(), c = _c;
    while (c != null) {
      for (Method m : c.getDeclaredMethods())
        if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0) {
          m.setAccessible(true);
          multiMapPut(callMC_cache, m.getName(), m);
        }
      c = c.getSuperclass();
    }
  }
}
static List<Rect> horizontalAutoSplit2ThenAutoCrop(BWImage img) {
  List<Rect> l = new ArrayList();
  for (Rect r : horizontalAutoSplit2(img))
    l.add(translateRect(autoCropOfBWImage(img.clip(r)), r.x, r.y));
  return l;
}
static File screenClipsDir() {
  return newFile(javaxDataDir(), "Screen Clips");
}
static String md5Regexp() {
  return "[a-f0-9]{32}";
}
// TODO: test if android complains about this
static boolean isAWTThread() {
  if (isAndroid()) return false;
  if (isHeadless()) return false;
  return isAWTThread_awt();
}

static boolean isAWTThread_awt() {
  return SwingUtilities.isEventDispatchThread();
}
static RuntimeException rethrow(Throwable t) {
  
  if (t instanceof Error)
    _handleError((Error) t);
  
  throw t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
// extended over Class.isInstance() to handle primitive types
static boolean isInstanceX(Class type, Object arg) {
  if (type == boolean.class) return arg instanceof Boolean;
  if (type == int.class) return arg instanceof Integer;
  if (type == long.class) return arg instanceof Long;
  if (type == float.class) return arg instanceof Float;
  if (type == short.class) return arg instanceof Short;
  if (type == char.class) return arg instanceof Character;
  if (type == byte.class) return arg instanceof Byte;
  if (type == double.class) return arg instanceof Double;
  return type.isInstance(arg);
}
static Thread currentThread() {
  return Thread.currentThread();
}
static String regexpFirstGroupIC(String pat, String s) {
  Matcher m = regexpIC(pat, s);
  if (m.find()) return m.group(1); else return null;
}
static String toLower(String s) {
  return s == null ? null : s.toLowerCase();
}

static char toLower(char c) {
  return Character.toLowerCase(c);
}
static String afterSquareBracketStuff(String s) {
  return trimSubstring(s, indexOf(s, ']')+1);
}
static String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static boolean eq(Object a, Object b) {
  return a == null ? b == null : a == b || a.equals(b);
}


static IterableIterator<String> scanLog_iterator(String progID, String fileName) {
  return scanLog_iterator(getProgramFile(progID, fileName));
}

static IterableIterator<String> scanLog_iterator(String fileName) {
  return scanLog_iterator(getProgramFile(fileName));
}

static IterableIterator<String> scanLog_iterator(File file) {
  // TODO: opens all at once
  final Iterator<String> it = chainIterators(map("linesFromFile",
    concatLists(earlierPartsOfLogFile(file), ll(file))));
  return iteratorFromFunction(new F0<String>() { String get() { try { 
    while (it.hasNext()) {
      String s = it.next();
      if (isProperlyQuoted(s))
        return unquote(s);
    }
    return null;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "while (it.hasNext()) {\r\n      S s = it.next();\r\n      if (isProperlyQuoted(s)..."; }});
}

static <A> void addUnlessNull(Collection<A> l, A a) {
  if (l != null && a != null) l.add(a);
}
static String rgbMD5(RGBImage img) {
  return md5OfRGBImage(img);
}
static Pair<String, String> splitAroundColon_toPair(String s) {
  return listToPair(ai_splitAroundPhrase(s, ":"));
}
static RuntimeException fail() { throw new RuntimeException("fail"); }
static RuntimeException fail(Throwable e) { throw asRuntimeException(e); }
static RuntimeException fail(Object msg) { throw new RuntimeException(String.valueOf(msg)); }
static RuntimeException fail(String msg) { throw new RuntimeException(msg == null ? "" : msg); }
static RuntimeException fail(String msg, Throwable innerException) { throw new RuntimeException(msg, innerException); }

static boolean loadBufferedImage_useImageCache = true;

static BufferedImage loadBufferedImage(String snippetIDOrURL) { try {
  if (snippetIDOrURL == null) return null;
  if (isURL(snippetIDOrURL))
    return ImageIO.read(new URL(snippetIDOrURL));

  if (!isSnippetID(snippetIDOrURL)) throw fail("Not a URL or snippet ID: " + snippetIDOrURL);
  String snippetID = "" + parseSnippetID(snippetIDOrURL);
  
  File dir = getCacheProgramDir("Image-Snippets");
  if (loadBufferedImage_useImageCache) {
    dir.mkdirs();
    File file = new File(dir, snippetID + ".png");
    if (file.exists() && file.length() != 0)
      try {
        return ImageIO.read(file);
      } catch (Throwable e) {
        e.printStackTrace();
        // fall back to loading from sourceforge
      }
  }

  String imageURL = snippetImageURL(snippetID);
  System.err.println("Loading image: " + imageURL);
  BufferedImage image = ImageIO.read(new URL(imageURL));

  if (loadBufferedImage_useImageCache) {
    File tempFile = new File(dir, snippetID + ".tmp." + System.currentTimeMillis());
    ImageIO.write(image, "png", tempFile);
    tempFile.renameTo(new File(dir, snippetID + ".png"));
    //Log.info("Cached image.");
  }

  //Log.info("Loaded image.");
  return image;
} catch (Exception __e) { throw rethrow(__e); } }

static BufferedImage loadBufferedImage(File file) { try {
  return file.isFile() ? ImageIO.read(file) : null;
} catch (Exception __e) { throw rethrow(__e); } }
static List _registerWeakMap_preList;

static <A> A _registerWeakMap(A map) {
  if (javax() == null) {
    // We're in class init
    if (_registerWeakMap_preList == null) _registerWeakMap_preList = synchroList();
    _registerWeakMap_preList.add(map);
    return map;
  }
  
  try {
    call(javax(), "_registerWeakMap", map);
  } catch (Throwable e) {
    printException(e);
    print("Upgrade JavaX!!");
  }
  return map;
}

static void _onLoad_registerWeakMap() {
  assertNotNull(javax());
  if (_registerWeakMap_preList == null) return;
  for (Object o : _registerWeakMap_preList)
    _registerWeakMap(o);
  _registerWeakMap_preList = null;
}
static List<File> filesEndingWith(File dir, String suffix) {
  return listFilesWithSuffix(dir, suffix);
}
static String getClassName(Object o) {
  return o == null ? "null" : o instanceof Class ? ((Class) o).getName() : o.getClass().getName();
}
static Object invokeMethod(Method m, Object o, Object... args) { try {
  try {
    return m.invoke(o, args);
  } catch (InvocationTargetException e) {
    throw rethrow(getExceptionCause(e));
  } catch (IllegalArgumentException e) {
    throw new IllegalArgumentException(e.getMessage() + " - was calling: " + m + ", args: " + joinWithSpace(classNames(args)));
  }
} catch (Exception __e) { throw rethrow(__e); } }


static Rect translateRect(int x, int y, Rect r) {
  return translateRect(r, x, y);
}

static Rect translateRect(Rect r, int x, int y) {
  return r == null ? null : new Rect(r.x+x, r.y+y, r.w, r.h);
}
static <A> List<A> ll(A... a) {
  ArrayList l = new ArrayList(a.length);
  for (A x : a) l.add(x);
  return l;
}
static Boolean isHeadless_cache;

static boolean isHeadless() {
  if (isHeadless_cache != null) return isHeadless_cache;
  if (isAndroid()) return isHeadless_cache = true;
  if (GraphicsEnvironment.isHeadless()) return isHeadless_cache = true;
  
  // Also check if AWT actually works.
  // If DISPLAY variable is set but no X server up, this will notice.
  
  try {
    SwingUtilities.isEventDispatchThread();
    return isHeadless_cache = false;
  } catch (Throwable e) { return isHeadless_cache = true; }
}
// TODO: send hard errors to core

static AtomicLong _handleError_nonVMErrors = new AtomicLong();
static AtomicLong _handleError_vmErrors = new AtomicLong();
static AtomicLong _handleError_outOfMemoryErrors = new AtomicLong();
static volatile long _handleError_lastOutOfMemoryError;
static volatile Error _handleError_lastHardError;

static void _handleError(Error e) {
  if (!(e instanceof VirtualMachineError)) {
    incAtomicLong(_handleError_nonVMErrors);
    return;
  }
  
  print("\nHARD ERROR\n");
  printStackTrace2(e);
  print("\nHARD ERROR\n");
  _handleError_lastHardError = e;
  
  incAtomicLong(_handleError_vmErrors);
  if (e instanceof OutOfMemoryError) {
    incAtomicLong(_handleError_outOfMemoryErrors);
    _handleError_lastOutOfMemoryError = sysNow();
  }
}
static Throwable getExceptionCause(Throwable e) {
  Throwable c = e.getCause();
  return c != null ? c : e;
}
static String joinWithSpace(Collection<String> c) {
  return join(" ", c);
}

static String joinWithSpace(String... c) {
  return join(" ", c);
}

static List<String> classNames(Collection l) {
  return getClassNames(l);
}

static List<String> classNames(Object[] l) {
  return getClassNames(Arrays.asList(l));
}
static float horizontalAutoSplit2_threshold = 0.5f;

static List<Rect> horizontalAutoSplit2(BWImage img) {
  return horizontalAutoSplit2(img, horizontalAutoSplit2_threshold);
}

static List<Rect> horizontalAutoSplit2(BWImage img, float threshold) {
  int w = img.getWidth(), h = img.getHeight();
  float[] f = bwImageColumnMinBrightness(img);
  
  List<Rect> l = new ArrayList();
  int j = -1;
  for (int i = 0; i < l(f); i++)
    if (f[i] < threshold) { // start / continue streak
      if (j < 0) j = i; 
    } else {
      if (j >= 0) { // end streak
        l.add(new Rect(j, 0, i-j, h));
        j = -1;
      }
    }
  if (j >= 0)
    l.add(new Rect(j, 0, w-j, h));
  return l;
}
static <A> Pair<A, A> listToPair(List<A> l) {
  return l(l) != 2 ? null : pair(first(l), second(l));
}
static RuntimeException asRuntimeException(Throwable t) {
  
  if (t instanceof Error)
    _handleError((Error) t);
  
  return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t);
}
static Class javax() {
  return getJavaX();
}
static Class mc() {
  return main.class;
}
static <A> A assertNotNull(A a) {
  assertTrue(a != null);
  return a;
}

static <A> A assertNotNull(String msg, A a) {
  assertTrue(msg, a != null);
  return a;
}
static boolean isURL(String s) {
  return s.startsWith("http://") || s.startsWith("https://");
}
static List<File> listFilesWithSuffix(File dir, String suffix) {
  List<File> l = new ArrayList();
  for (File f : listFiles(dir))
    if (!f.isDirectory() && (empty(suffix) || endsWithIgnoreCase(f.getName(), suffix)))
      l.add(f);
  return l;
}
static <A, B> void multiMapPut(Map<A, List<B>> map, A a, B b) {
  List<B> l = map.get(a);
  if (l == null)
    map.put(a, l = new ArrayList());
  l.add(b);
}
static <A> int indexOf(List<A> l, A a, int startIndex) {
  if (l == null) return -1;
  for (int i = startIndex; i < l(l); i++)
    if (eq(l.get(i), a))
      return i;
  return -1;
}

static <A> int indexOf(List<A> l, int startIndex, A a) {
  return indexOf(l, a, startIndex);
}

static <A> int indexOf(List<A> l, A a) {
  if (l == null) return -1;
  return l.indexOf(a);
}

static int indexOf(String a, String b) {
  return a == null || b == null ? -1 : a.indexOf(b);
}

static int indexOf(String a, String b, int i) {
  return a == null || b == null ? -1 : a.indexOf(b, i);
}

static int indexOf(String a, char b) {
  return a == null ? -1 : a.indexOf(b);
}

static int indexOf(String a, int i, char b) {
  return indexOf(a, b, i);
}

static int indexOf(String a, char b, int i) {
  return a == null ? -1 : a.indexOf(b, i);
}

static int indexOf(String a, int i, String b) {
  return a == null || b == null ? -1 : a.indexOf(b, i);
}

static <A> int indexOf(A[] x, A a) {
  if (x == null) return -1;
  for (int i = 0; i < l(x); i++)
    if (eq(x[i], a))
      return i;
  return -1;
}
static float autoCropOfBWImage_threshold = 0.9f;

static Rect autoCropOfBWImage(BWImage img) {
  return autoCropOfBWImage(img, new Rect(0, 0, img.getWidth(), img.getHeight()));
}

static Rect autoCropOfBWImage(BWImage img, Rect r) {
  return autoCropOfBWImage(img, r, autoCropOfBWImage_threshold);
}

// r = initial rectangle
static Rect autoCropOfBWImage(BWImage img, Rect r, float threshold) {
  int x1 = r.x, y1 = r.y, x2 = r.x2(), y2 = r.y2();

  // left side

  end1:
  while (x1 < x2) {
    for (int y = y1; y < y2; y++)
      if (img.getPixel(x1, y) <= threshold)
        break end1;
    x1++;
  }

  // top side

  end2:
  while (y1 < y2) {
    for (int x = x1; x < x2; x++)
      if (img.getPixel(x, y1) <= threshold)
        break end2;
    y1++;
  }

  // right side

  end3:
  while (x2 > x1) {
    for (int y = y1; y < y2; y++)
      if (img.getPixel(x2-1, y) <= threshold)
        break end3;
    x2--;
  }

  // bottom side

  end4:
  while (y2 > y1) {
    for (int x = x1; x < x2; x++)
      if (img.getPixel(x, y2-1) <= threshold)
        break end4;
    y2--;
  }

  if (x2 <= x1 || y2 <= y1)
    return r;
  else
    return new Rect(x1, y1, x2 - x1, y2 - y1);
}

static IterableIterator<String> linesFromFile(File f) { try {
  if (!f.exists()) return emptyIterableIterator();
  if (ewic(f.getName(), ".gz"))
    return linesFromReader(utf8bufferedReader(newGZIPInputStream(f)));
  return linesFromReader(utf8bufferedReader(f));
} catch (Exception __e) { throw rethrow(__e); } }
static <A> Iterator<A> chainIterators(Collection<Iterator<A>> l) {
  final List<Iterator<A>> _l = new LinkedList(l);
  return iteratorFromFunction(new F0<A>() { A get() { try { 
    while (nempty(_l)) {
      if (first(_l).hasNext())
        return first(_l).next();
      _l.remove(0);
    }
    return null;
   } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "while (nempty(_l)) {\r\n      if (first(_l).hasNext())\r\n        ret first(_l).n..."; }});
}
static void printException(Throwable e) {
  printStackTrace(e);
}
static String snippetImageURL(String snippetID) {
  return snippetImageURL(snippetID, "png");
}

static String snippetImageURL(String snippetID, String contentType) {
  long id = parseSnippetID(snippetID);
  String url;
  if (id == 1000010 || id == 1000012)
    url = "http://tinybrain.de:8080/tb/show-blobimage.php?id=" + id;
  else if (isImageServerSnippet(id))
    url = imageServerLink(id);
  else
    //url = "http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + id + "&contentType=image/" + contentType;
    url = "https://www.botcompany.de:8443/img/" + id;
  return url;
}
static boolean isProperlyQuoted(String s) {
  return s.length() >= 2
    && s.startsWith("\"")
    && s.endsWith("\"")
    && (!s.endsWith("\\\"") || s.endsWith("\\\\\""));
}
static String str(Object o) {
  return o == null ? "null" : o.toString();
}

static String str(char[] c) {
  return new String(c);
}
static <A> List<A> concatLists(Collection<A>... lists) {
  List<A> l = new ArrayList();
  for (Collection<A> list : lists)
    if (list != null)
      l.addAll(list);
  return l;
}

static <A> List<A> concatLists(Collection<? extends Collection<A>> lists) {
  List<A> l = new ArrayList();
  for (Collection<A> list : lists)
    if (list != null)
      l.addAll(list);
  return l;
}

// f: func -> A (stream ends when f returns null)
static <A> IterableIterator<A> iteratorFromFunction(final Object f) {
  class IFF extends IterableIterator<A> {
    A a;
    boolean done;
    
    public boolean hasNext() {
      getNext();
      return !done;
    }
    
    public A next() {
      getNext();
      if (done) throw fail();
      A _a = a;
      a = null;
      return _a;
    }
    
    void getNext() {
      if (done || a != null) return;
      a = (A) callF(f);
      done = a == null;
    }
  };
  return new IFF();
}

// optimized version for F0 argument
static <A> IterableIterator<A> iteratorFromFunction(final F0<A> f) {
  return iteratorFromFunction_f0(f);
}
static File javaxDataDir_dir; // can be set to work on different base dir

static File javaxDataDir() {
  return javaxDataDir_dir != null ? javaxDataDir_dir : new File(userHome(), "JavaX-Data");
}

static File javaxDataDir(String sub) {
  return newFile(javaxDataDir(), sub);
}
static Matcher regexpIC(String pat, String s) {
  return Pattern.compile(pat, Pattern.CASE_INSENSITIVE).matcher(s);
}

static Pattern regexpIC(String pat) {
  return Pattern.compile(pat, Pattern.CASE_INSENSITIVE);
}
static File newFile(File base, String... names) {
  for (String name : names) base = new File(base, name);
  return base;
}

static File newFile(String name) {
  return name == null ? null : new File(name);
}
static File getCacheProgramDir() {
  return getCacheProgramDir(getProgramID());
}

static File getCacheProgramDir(String snippetID) {
  return new File(userHome(), "JavaX-Caches/" + formatSnippetIDOpt(snippetID));
}
  public static boolean isSnippetID(String s) {
    try {
      parseSnippetID(s);
      return true;
    } catch (RuntimeException e) {
      return false;
    }
  }
static String trimSubstring(String s, int x) {
  return trim(substring(s, x));
}

static String trimSubstring(String s, int x, int y) {
  return trim(substring(s, x, y));
}


public static long parseSnippetID(String snippetID) {
  long id = Long.parseLong(shortenSnippetID(snippetID));
  if (id == 0) throw fail("0 is not a snippet ID");
  return id;
}
static <A> List<A> synchroList() {
  return Collections.synchronizedList(new ArrayList<A>());
}

static <A> List<A> synchroList(List<A> l) {
  return Collections.synchronizedList(l);
}

static List<String> ai_splitAroundPhrase(String s, String phrase) {
  List<String> tok = javaTok(s);
  String[] _phrase = toStringArray(javaTokC(phrase));
  int i = findCodeTokensIC(tok, _phrase);
  return i < 0 ? ll(s) : ll(trimJoinSubList(tok, 0, i), trimJoinSubList(tok, i+l(_phrase)*2));
}
static List map(Iterable l, Object f) {
  return map(f, l);
}

static List map(Object f, Iterable l) {
  List x = emptyList(l);
  if (l != null) for (Object o : l)
    x.add(callF(f, o));
  return x;
}


  static List map(F1 f, Iterable l) {
    List x = emptyList(l);
    if (l != null) for (Object o : l)
      x.add(callF(f, o));
    return x;
  }


static List map(Object f, Object[] l) { return map(f, asList(l)); }
static List map(Object[] l, Object f) { return map(f, l); }

static List map(Object f, Map map) {
  return map(map, f);
}

// map: func(key, value) -> list element
static List map(Map map, Object f) {
  List x = new ArrayList();
  if (map != null) for (Object _e : map.entrySet()) {
    Map.Entry e = (Map.Entry) _e;
    x.add(callF(f, e.getKey(), e.getValue()));
  }
  return x;
}
static String unquote(String s) {
  if (s == null) return null;
  if (startsWith(s, '[')) {
    int i = 1;
    while (i < s.length() && s.charAt(i) == '=') ++i;
    if (i < s.length() && s.charAt(i) == '[') {
      String m = s.substring(1, i);
      if (s.endsWith("]" + m + "]"))
        return s.substring(i+1, s.length()-i-1);
    }
  }
  
  if (s.length() > 1) {
    char c = s.charAt(0);
    if (c == '\"' || c == '\'') {
      int l = endsWith(s, c) ? s.length()-1 : s.length();
      StringBuilder sb = new StringBuilder(l-1);
  
      for (int i = 1; i < l; i++) {
        char ch = s.charAt(i);
        if (ch == '\\') {
          char nextChar = (i == l - 1) ? '\\' : s.charAt(i + 1);
          // Octal escape?
          if (nextChar >= '0' && nextChar <= '7') {
              String code = "" + nextChar;
              i++;
              if ((i < l - 1) && s.charAt(i + 1) >= '0'
                      && s.charAt(i + 1) <= '7') {
                  code += s.charAt(i + 1);
                  i++;
                  if ((i < l - 1) && s.charAt(i + 1) >= '0'
                          && s.charAt(i + 1) <= '7') {
                      code += s.charAt(i + 1);
                      i++;
                  }
              }
              sb.append((char) Integer.parseInt(code, 8));
              continue;
          }
          switch (nextChar) {
          case '\"': ch = '\"'; break;
          case '\\': ch = '\\'; break;
          case 'b': ch = '\b'; break;
          case 'f': ch = '\f'; break;
          case 'n': ch = '\n'; break;
          case 'r': ch = '\r'; break;
          case 't': ch = '\t'; break;
          case '\'': ch = '\''; break;
          // Hex Unicode: u????
          case 'u':
              if (i >= l - 5) {
                  ch = 'u';
                  break;
              }
              int code = Integer.parseInt(
                      "" + s.charAt(i + 2) + s.charAt(i + 3)
                         + s.charAt(i + 4) + s.charAt(i + 5), 16);
              sb.append(Character.toChars(code));
              i += 5;
              continue;
          default:
            ch = nextChar; // added by Stefan
          }
          i++;
        }
        sb.append(ch);
      }
      return sb.toString();
    }
  }
    
  return s; // not quoted - return original
}
static File getProgramFile(String progID, String fileName) {
  if (new File(fileName).isAbsolute())
    return new File(fileName);
  return new File(getProgramDir(progID), fileName);
}

static File getProgramFile(String fileName) {
  return getProgramFile(getProgramID(), fileName);
}

static String md5OfRGBImage(RGBImage img) { try {
  MessageDigest m = MessageDigest.getInstance("MD5");
  m.update(intToBytes(img.getWidth()));
  int[] pixels = img.getPixels();
  for (int i = 0; i < l(pixels); i++)
    m.update(intToBytes(pixels[i]));
  return bytesToHex(m.digest());
} catch (Exception __e) { throw rethrow(__e); } }
static List<File> earlierPartsOfLogFile(File file) {
  String name = file.getName() + ".part";
  try {
    Matches m = new Matches();
    TreeMap<Integer,File> map = new TreeMap();
    for (File p : listFiles(file.getParent())) try {
      String n = p.getName();
      if (startsWith(n, name, m))
        map.put(parseFirstInt(m.rest()), p);
    } catch (Throwable __e) { printStackTrace2(__e); }
    return valuesList(map);
  } catch (Throwable e) { printException(e);
    return ll();
  }
}
static Map synchroHashMap() {
  return Collections.synchronizedMap(new HashMap());
}

static int isAndroid_flag;

static boolean isAndroid() {
  if (isAndroid_flag == 0)
    isAndroid_flag = System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0 ? 1 : -1;
  return isAndroid_flag > 0;
}



static <A> ArrayList<A> asList(A[] a) {
  return a == null ? new ArrayList<A>() : new ArrayList<A>(Arrays.asList(a));
}

static ArrayList<Integer> asList(int[] a) {
  ArrayList<Integer> l = new ArrayList();
  for (int i : a) l.add(i);
  return l;
}

static <A> ArrayList<A> asList(Iterable<A> s) {
  if (s instanceof ArrayList) return (ArrayList) s;
  ArrayList l = new ArrayList();
  if (s != null)
    for (A a : s)
      l.add(a);
  return l;
}

static <A> ArrayList<A> asList(Enumeration<A> e) {
  ArrayList l = new ArrayList();
  if (e != null)
    while (e.hasMoreElements())
      l.add(e.nextElement());
  return l;
}
static String trim(String s) { return s == null ? null : s.trim(); }
static String trim(StringBuilder buf) { return buf.toString().trim(); }
static String trim(StringBuffer buf) { return buf.toString().trim(); }
public static String join(String glue, Iterable<String> strings) {
  if (strings == null) return "";
  StringBuilder buf = new StringBuilder();
  Iterator<String> i = strings.iterator();
  if (i.hasNext()) {
    buf.append(i.next());
    while (i.hasNext())
      buf.append(glue).append(i.next());
  }
  return buf.toString();
}

public static String join(String glue, String... strings) {
  return join(glue, Arrays.asList(strings));
}

static String join(Iterable<String> strings) {
  return join("", strings);
}

static String join(Iterable<String> strings, String glue) {
  return join(glue, strings);
}

public static String join(String[] strings) {
  return join("", strings);
}


static String join(String glue, Pair p) {
  return p == null ? "" : str(p.a) + glue + str(p.b);
}

static String shortenSnippetID(String snippetID) {
  if (snippetID.startsWith("#"))
    snippetID = snippetID.substring(1);
  String httpBlaBla = "http://tinybrain.de/";
  if (snippetID.startsWith(httpBlaBla))
    snippetID = snippetID.substring(httpBlaBla.length());
  return "" + parseLong(snippetID);
}
static Throwable printStackTrace(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace(e));
  return e;
}

static void printStackTrace() {
  printStackTrace(new Throwable());
}

static void printStackTrace(String msg) {
  printStackTrace(new Throwable(msg));
}

/*static void printStackTrace(S indent, Throwable e) {
  if (endsWithLetter(indent)) indent += " ";
  printIndent(indent, getStackTrace(e));
}*/
static String imageServerLink(String md5OrID) {
  if (possibleMD5(md5OrID))
    return "http://images.botcompany.de/images/md5/" + md5OrID;
  return imageServerLink(parseSnippetID(md5OrID));
}

static String imageServerLink(long id) {
  return "http://images.botcompany.de/images/" + id;
}
static <A, B> List<B> valuesList(Map<A, B> map) {
  return cloneListSynchronizingOn(values(map), map);
}
static boolean endsWith(String a, String b) {
  return a != null && a.endsWith(b);
}

static boolean endsWith(String a, char c) {
  return nempty(a) && lastChar(a) == c;
}


  static boolean endsWith(String a, String b, Matches m) {
    if (!endsWith(a, b)) return false;
    m.m = new String[] {dropLast(l(b), a)};
    return true;
  }


static boolean endsWithIgnoreCase(String a, String b) {
  int la = l(a), lb = l(b);
  return la >= lb && regionMatchesIC(a, la-lb, b, 0, lb);
}

static boolean endsWithIgnoreCase(String a, String b, Matches m) {
  if (!endsWithIgnoreCase(a, b)) return false;
  m.m = new String[] { substring(a, 0, l(a)-l(b)) };
  return true;
}
static String programID;

static String getProgramID() {
  return nempty(programID) ? formatSnippetIDOpt(programID) : "?";
}


// TODO: ask JavaX instead
static String getProgramID(Class c) {
  String id = (String) getOpt(c, "programID");
  if (nempty(id))
    return formatSnippetID(id);
  return "?";
}


static String getProgramID(Object o) {
  return getProgramID(getMainClass(o));
}
// TODO: extended multi-line strings

static int javaTok_n, javaTok_elements;
static boolean javaTok_opt;

static List<String> javaTok(String s) {
  ++javaTok_n;
  ArrayList<String> tok = new ArrayList();
  int l = s.length();
  
  int i = 0, n = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    tok.add(javaTok_substringN(s, i, j));
    ++n;
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

    // scan for non-whitespace
    
    // Special JavaX syntax: 'identifier
    if (c == '\'' && Character.isJavaIdentifierStart(d) && i+2 < l && "'\\".indexOf(s.charAt(i+2)) < 0) {
      j += 2;
      while (j < l && Character.isJavaIdentifierPart(s.charAt(j)))
        ++j;
    } else if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener /*|| s.charAt(j) == '\n'*/) { // allow multi-line strings
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
    else if (Character.isDigit(c)) {
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
    } else if (c == '[' && d == '[') {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else
      ++j;
      
    tok.add(javaTok_substringC(s, i, j));
    ++n;
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  javaTok_elements += tok.size();
  return tok;
}

static List<String> javaTok(List<String> tok) {
  return javaTokWithExisting(join(tok), tok);
}
static boolean isImageServerSnippet(long id) {
  return id >= 1100000 && id < 1200000;
}
static IterableIterator emptyIterableIterator_instance = new IterableIterator() {
  public Object next() { throw fail(); }
  public boolean hasNext() { return false; }
};

static <A> IterableIterator<A> emptyIterableIterator() {
  return emptyIterableIterator_instance; 
}
static String _userHome;
static String userHome() {
  if (_userHome == null) {
    if (isAndroid())
      _userHome = "/storage/sdcard0/";
    else
      _userHome = System.getProperty("user.home");
    //System.out.println("userHome: " + _userHome);
  }
  return _userHome;
}

static File userHome(String path) {
  return new File(userDir(), path);
}
static void assertTrue(Object o) {
  if (!(eq(o, true) /*|| isTrue(pcallF(o))*/))
    throw fail(str(o));
}
  
static boolean assertTrue(String msg, boolean b) {
  if (!b)
    throw fail(msg);
  return b;
}

static boolean assertTrue(boolean b) {
  if (!b)
    throw fail("oops");
  return b;
}
static void incAtomicLong(AtomicLong l) {
  l.incrementAndGet();
}
static List<String> getClassNames(Collection l) {
  List<String> out = new ArrayList();
  if (l != null) for (Object o : l)
    out.add(o == null ? null : getClassName(o));
  return out;
}
static Class __javax;

static Class getJavaX() {
  return __javax;
}
static boolean ewic(String a, String b) {
  return endsWithIgnoreCase(a, b);
}

static boolean ewic(String a, String b, Matches m) {
  return endsWithIgnoreCase(a, b, m);
}
static BufferedReader utf8bufferedReader(InputStream in) { try {
  return new BufferedReader(new InputStreamReader(in, "UTF-8"));
} catch (Exception __e) { throw rethrow(__e); } }

static BufferedReader utf8bufferedReader(File f) { try {
  return utf8bufferedReader(newFileInputStream(f));
} catch (Exception __e) { throw rethrow(__e); } }
static int findCodeTokensIC(List<String> tok, String... tokens) {
  return findCodeTokens(tok, 1, true, tokens);
}
static List<String> javaTokC(String s) {
  if (s == null) return null;
  int l = s.length();
  ArrayList<String> tok = new ArrayList();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

    // scan for non-whitespace
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener || s.charAt(j) == '\n') { // end at \n to not propagate unclosed string literal errors
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
    else if (Character.isDigit(c)) {
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
    } else if (c == '[' && d == '[') {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else
      ++j;
      
    tok.add(javaTok_substringC(s, i, j));
    i = j;
  }
  
  return tok;
}
static String[] toStringArray(Collection<String> c) {
  String[] a = new String[l(c)];
  Iterator<String> it = c.iterator();
  for (int i = 0; i < l(a); i++)
    a[i] = it.next();
  return a;
}

static String[] toStringArray(Object o) {
  if (o instanceof String[])
    return (String[]) o;
  else if (o instanceof Collection)
    return toStringArray((Collection<String>) o);
  else
    throw fail("Not a collection or array: " + getClassName(o));
}

static File getProgramDir() {
  return programDir();
}

static File getProgramDir(String snippetID) {
  return programDir(snippetID);
}
static int parseFirstInt(String s) {
  return parseInt(jextract("<int>", s));
}
static Object first(Object list) {
  return empty((List) list) ? null : ((List) list).get(0);
}

static <A> A first(List<A> list) {
  return empty(list) ? null : list.get(0);
}

static <A> A first(A[] bla) {
  return bla == null || bla.length == 0 ? null : bla[0];
}

static <A> A first(Iterable<A> i) {
  if (i == null) return null;
  Iterator<A> it = i.iterator();
  return it.hasNext() ? it.next() : null;
}

static Character first(String s) { return empty(s) ? null : s.charAt(0); }


static <A, B> A first(Pair<A, B> p) {
  return p == null ? null : p.a;
}

static float[] bwImageColumnMinBrightness(BWImage img) {
  int w = img.getWidth(), h = img.getHeight();
  float[] f = new float[w];
  for (int x = 0; x < w; x++)
    f[x] = (float) img.clip(x, 0, 1, h).minimumBrightness();
  return f;
}

static <A> A second(List<A> l) {
  return get(l, 1);
}

static <A> A second(A[] bla) {
  return bla == null || bla.length <= 1 ? null : bla[1];
}


static <A, B> B second(Pair<A, B> p) {
  return p == null ? null : p.b;
}



static boolean empty(Collection c) { return c == null || c.isEmpty(); }
static boolean empty(String s) { return s == null || s.length() == 0; }
static boolean empty(Map map) { return map == null || map.isEmpty(); }
static boolean empty(Object[] o) { return o == null || o.length == 0; }
static boolean empty(Object o) {
  if (o instanceof Collection) return empty((Collection) o);
  if (o instanceof String) return empty((String) o);
  if (o instanceof Map) return empty((Map) o);
  if (o instanceof Object[]) return empty((Object[]) o);
  if (o instanceof byte[]) return empty((byte[]) o);
  if (o == null) return true;
  throw fail("unknown type for 'empty': " + getType(o));
}

static boolean empty(float[] a) { return a == null || a.length == 0; }
static boolean empty(int[] a) { return a == null || a.length == 0; }
static boolean empty(long[] a) { return a == null || a.length == 0; }
static boolean empty(byte[] a) { return a == null || a.length == 0; }


  public static String bytesToHex(byte[] bytes) {
    return bytesToHex(bytes, 0, bytes.length);
  }

  public static String bytesToHex(byte[] bytes, int ofs, int len) {
    StringBuilder stringBuilder = new StringBuilder(len*2);
    for (int i = 0; i < len; i++) {
      String s = "0" + Integer.toHexString(bytes[ofs+i]);
      stringBuilder.append(s.substring(s.length()-2, s.length()));
    }
    return stringBuilder.toString();
  }

static byte[] intToBytes(int i) {
  return new byte[] {
          (byte) (i >>> 24),
          (byte) (i >>> 16),
          (byte) (i >>> 8),
          (byte) i};
}
static <A> IterableIterator<A> iteratorFromFunction_f0(final F0<A> f) {
  class IFF2 extends IterableIterator<A> {
    A a;
    boolean done;
    
    public boolean hasNext() {
      getNext();
      return !done;
    }
    
    public A next() {
      getNext();
      if (done) throw fail();
      A _a = a;
      a = null;
      return _a;
    }
    
    void getNext() {
      if (done || a != null) return;
      a = f.get();
      done = a == null;
    }
  };
  return new IFF2();
}
static String substring(String s, int x) {
  return substring(s, x, l(s));
}

static String substring(String s, int x, int y) {
  if (s == null) return null;
  if (x < 0) x = 0;
  if (x >= s.length()) return "";
  if (y < x) y = x;
  if (y > s.length()) y = s.length();
  return s.substring(x, y);
}


static List emptyList() {
  return new ArrayList();
  //ret Collections.emptyList();
}

static List emptyList(int capacity) {
  return new ArrayList(capacity);
}

// Try to match capacity
static List emptyList(Iterable l) {
  return l instanceof Collection ? emptyList(((Collection) l).size()) : emptyList();
}
static String formatSnippetIDOpt(String s) {
  return isSnippetID(s) ? formatSnippetID(s) : s;
}
static File[] listFiles(File dir) {
  File[] files = dir.listFiles();
  return files == null ? new File[0] : files;
}

static File[] listFiles(String dir) {
  return listFiles(new File(dir));
}
static String trimJoinSubList(List<String> l, int i, int j) {
  return trim(join(subList(l, i, j)));
}

static String trimJoinSubList(List<String> l, int i) {
  return trim(join(subList(l, i)));
}
static IterableIterator<String> linesFromReader(Reader r) {
  final BufferedReader br = bufferedReader(r);
  return iteratorFromFunction_f0(new F0<String>() { String get() { try { return  readLineFromReaderWithClose(br) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "readLineFromReaderWithClose(br)"; }});
}
static boolean nempty(Collection c) {
  return !isEmpty(c);
}

static boolean nempty(CharSequence s) {
  return !isEmpty(s);
}

static boolean nempty(Object[] o) { return !isEmpty(o); }
static boolean nempty(byte[] o) { return !isEmpty(o); }

static boolean nempty(Map m) {
  return !isEmpty(m);
}

static boolean nempty(Iterator i) {
  return i != null && i.hasNext();
}

static boolean nempty(Object o) { return !empty(o); }
static <A, B> Pair<A, B> pair(A a, B b) {
  return new Pair(a, b);
}

static <A> Pair<A, A> pair(A a) {
  return new Pair(a, a);
}
static GZIPInputStream newGZIPInputStream(File f) {
  return gzInputStream(f);
}

static GZIPInputStream newGZIPInputStream(InputStream in) {
  return gzInputStream(in);
}
static Throwable printStackTrace2(Throwable e) {
  // we go to system.out now - system.err is nonsense
  print(getStackTrace2(e));
  return e;
}

static void printStackTrace2() {
  printStackTrace2(new Throwable());
}

static void printStackTrace2(String msg) {
  printStackTrace2(new Throwable(msg));
}

/*static void printStackTrace2(S indent, Throwable e) {
  if (endsWithLetter(indent)) indent += " ";
  printIndent(indent, getStackTrace2(e));
}*/
static boolean startsWith(String a, String b) {
  return a != null && a.startsWith(b);
}

static boolean startsWith(String a, char c) {
  return nempty(a) && a.charAt(0) == c;
}


  static boolean startsWith(String a, String b, Matches m) {
    if (!startsWith(a, b)) return false;
    m.m = new String[] {substring(a, l(b))};
    return true;
  }


static boolean startsWith(List a, List b) {
  if (a == null || l(b) > l(a)) return false;
  for (int i = 0; i < l(b); i++)
    if (neq(a.get(i), b.get(i)))
      return false;
  return true;
}




static String javaTok_substringC(String s, int i, int j) {
  return s.substring(i, j);
}
static String javaTok_substringN(String s, int i, int j) {
  if (i == j) return "";
  if (j == i+1 && s.charAt(i) == ' ') return " ";
  return s.substring(i, j);
}
static FileInputStream newFileInputStream(File path) throws IOException {
  return newFileInputStream(path.getPath());
}

static FileInputStream newFileInputStream(String path) throws IOException {
  FileInputStream f = new // Line break for ancient translator
    FileInputStream(path);
  //callJavaX("registerIO", f, path, true);
  return f;
}
static String[] dropLast(String[] a, int n) {
  n = Math.min(n, a.length);
  String[] b = new String[a.length-n];
  System.arraycopy(a, 0, b, 0, b.length);
  return b;
}

static <A> List<A> dropLast(List<A> l) {
  return subList(l, 0, l(l)-1);
}

static <A> List<A> dropLast(int n, List<A> l) {
  return subList(l, 0, l(l)-n);
}

static <A> List<A> dropLast(Iterable<A> l) {
  return dropLast(asList(l));
}

static String dropLast(String s) {
  return substring(s, 0, l(s)-1);
}

static String dropLast(String s, int n) {
  return substring(s, 0, l(s)-n);
}

static String dropLast(int n, String s) {
  return dropLast(s, n);
}

static BufferedReader bufferedReader(Reader r) {
  return r instanceof BufferedReader ? (BufferedReader) r : new BufferedReader(r);
}
static String getStackTrace2(Throwable throwable) {
  return hideCredentials(getStackTrace(throwable) + replacePrefix("java.lang.RuntimeException: ", "FAIL: ",
    hideCredentials(str(getInnerException(throwable)))) + "\n");
}
static <A> ArrayList<A> cloneListSynchronizingOn(Collection<A> l, Object mutex) {
  if (l == null) return new ArrayList();
  synchronized(mutex) {
    return new ArrayList<A>(l);
  }
}
static String getType(Object o) {
  return getClassName(o);
}
// get purpose 1: access a list/array/map (safer version of x.get(y))

static <A> A get(List<A> l, int idx) {
  return l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}

// seems to conflict with other signatures
/*static <A, B> B get(Map<A, B> map, A key) {
  ret map != null ? map.get(key) : null;
}*/

static <A> A get(A[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : null;
}

// default to false
static boolean get(boolean[] l, int idx) {
  return idx >= 0 && idx < l(l) ? l[idx] : false;
}

// get purpose 2: access a field by reflection or a map

static Object get(Object o, String field) {
  try {
    if (o instanceof Class) return get((Class) o, field);
    
    if (o instanceof Map)
      return ((Map) o).get(field);
      
    Field f = getOpt_findField(o.getClass(), field);
    if (f != null) {
      f.setAccessible(true);
      return f.get(o);
    }
      
    
  } catch (Exception e) {
    throw asRuntimeException(e);
  }
  throw new RuntimeException("Field '" + field + "' not found in " + o.getClass().getName());
}

static Object get_raw(Object o, String field) {
  try {
    Field f = get_findField(o.getClass(), field);
    f.setAccessible(true);
    return f.get(o);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Object get(Class c, String field) {
  try {
    Field f = get_findStaticField(c, field);
    f.setAccessible(true);
    return f.get(null);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Field get_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}

static Field get_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}

static Class getMainClass() {
  return main.class;
}

static Class getMainClass(Object o) { try {
  return (o instanceof Class ? (Class) o : o.getClass()).getClassLoader().loadClass("main");
} catch (Exception __e) { throw rethrow(__e); } }
static <A> List<A> subList(List<A> l, int startIndex) {
  return subList(l, startIndex, l(l));
}

static <A> List<A> subList(List<A> l, int startIndex, int endIndex) {
  startIndex = max(0, min(l(l), startIndex));
  endIndex = max(0, min(l(l), endIndex));
  if (startIndex > endIndex) return litlist();
  return l.subList(startIndex, endIndex);
}


static boolean regionMatchesIC(String a, int offsetA, String b, int offsetB, int len) {
  
  
    return a != null && a.regionMatches(true, offsetA, b, offsetB, len);
  
}
static long parseLong(String s) {
  if (s == null) return 0;
  return Long.parseLong(dropSuffix("L", s));
}

static long parseLong(Object s) {
  return Long.parseLong((String) s);
}
static String readLineFromReaderWithClose(BufferedReader r) { try {
  String s = r.readLine();
  if (s == null) r.close();
  return s;
} catch (Exception __e) { throw rethrow(__e); } }
static int gzInputStream_defaultBufferSize = 65536;

static GZIPInputStream gzInputStream(File f) { try {
  return gzInputStream(new FileInputStream(f));
} catch (Exception __e) { throw rethrow(__e); } }

static GZIPInputStream gzInputStream(File f, int bufferSize) { try {
  return new GZIPInputStream(new FileInputStream(f), bufferSize);
} catch (Exception __e) { throw rethrow(__e); } }

static GZIPInputStream gzInputStream(InputStream in) { try {
  return new GZIPInputStream(in, gzInputStream_defaultBufferSize);
} catch (Exception __e) { throw rethrow(__e); } }
static String getStackTrace(Throwable throwable) {
  lastException(throwable);
  return getStackTrace_noRecord(throwable);
}

static String getStackTrace_noRecord(Throwable throwable) {
  StringWriter writer = new StringWriter();
  throwable.printStackTrace(new PrintWriter(writer));
  return hideCredentials(writer.toString());
}

static String getStackTrace() {
  return getStackTrace_noRecord(new Throwable());
}
static File programDir_mine; // set this to relocate program's data

static File programDir() {
  return programDir(getProgramID());
}

static File programDir(String snippetID) {
  boolean me = sameSnippetID(snippetID, programID());
  if (programDir_mine != null && me)
    return programDir_mine;
  File dir = new File(javaxDataDir(), formatSnippetID(snippetID));
  if (me) {
    String c = caseID();
    if (nempty(c)) dir = newFile(dir, c);
  }
  return dir;
}

static File programDir(String snippetID, String subPath) {
  return new File(programDir(snippetID), subPath);
}
static String formatSnippetID(String id) {
  return "#" + parseSnippetID(id);
}

static String formatSnippetID(long id) {
  return "#" + id;
}
static int findCodeTokens(List<String> tok, String... tokens) {
  return findCodeTokens(tok, 1, false, tokens);
}

static int findCodeTokens(List<String> tok, boolean ignoreCase, String... tokens) {
  return findCodeTokens(tok, 1, ignoreCase, tokens);
}

static int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String... tokens) {
  return findCodeTokens(tok, startIdx, ignoreCase, tokens, null);
}

static List<String> findCodeTokens_specials = litlist("*", "<quoted>", "<id>", "<int>", "\\*");
static boolean findCodeTokens_debug;
static int findCodeTokens_indexed, findCodeTokens_unindexed;
static int findCodeTokens_bails, findCodeTokens_nonbails;

static int findCodeTokens(List<String> tok, int startIdx, boolean ignoreCase, String[] tokens, Object condition) {
  if (findCodeTokens_debug) {
    if (eq(getClassName(tok), "main$IndexedList2"))
      findCodeTokens_indexed++;
    else
      findCodeTokens_unindexed++;
  }
  // bail out early if first token not found (works great with IndexedList)
  if (!findCodeTokens_specials.contains(tokens[0])
    && !tok.contains(tokens[0] /*, startIdx << no signature in List for this, unfortunately */)) {
      ++findCodeTokens_bails;
      return -1;
    }
  ++findCodeTokens_nonbails;
  
  outer: for (int i = startIdx | 1; i+tokens.length*2-2 < tok.size(); i += 2) {
    for (int j = 0; j < tokens.length; j++) {
      String p = tokens[j], t = tok.get(i+j*2);
      boolean match;
      if (eq(p, "*")) match = true;
      else if (eq(p, "<quoted>")) match = isQuoted(t);
      else if (eq(p, "<id>")) match = isIdentifier(t);
      else if (eq(p, "<int>")) match = isInteger(t);
      else if (eq(p, "\\*")) match = eq("*", t);
      else match = ignoreCase ? eqic(p, t) : eq(p, t);
      
      if (!match)
        continue outer;
    }
    
    if (condition == null || checkTokCondition(condition, tok, i-1)) // pass N index
      return i;
  }
  return -1;
}
static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
static List<String> javaTokWithExisting(String s, List<String> existing) {
  ++javaTok_n;
  int nExisting = javaTok_opt && existing != null ? existing.size() : 0;
  ArrayList<String> tok = existing != null ? new ArrayList(nExisting) : new ArrayList();
  int l = s.length();
  
  int i = 0, n = 0;
  while (i < l) {
    int j = i;
    char c, d;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      d = j+1 >= l ? '\0' : s.charAt(j+1);
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (c == '/' && d == '*') {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (c == '/' && d == '/') {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    if (n < nExisting && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
      tok.add(existing.get(n));
    else
      tok.add(javaTok_substringN(s, i, j));
    ++n;
    i = j;
    if (i >= l) break;
    c = s.charAt(i);
    d = i+1 >= l ? '\0' : s.charAt(i+1);

    // scan for non-whitespace
    
    // Special JavaX syntax: 'identifier
    if (c == '\'' && Character.isJavaIdentifierStart(d) && i+2 < l && "'\\".indexOf(s.charAt(i+2)) < 0) {
      j += 2;
      while (j < l && Character.isJavaIdentifierPart(s.charAt(j)))
        ++j;
    } else if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        if (s.charAt(j) == opener /*|| s.charAt(j) == '\n'*/) { // allow multi-line strings
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't"
    else if (Character.isDigit(c)) {
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
      if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L
    } else if (c == '[' && d == '[') {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') {
      do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]"));
      j = Math.min(j+3, l);
    } else
      ++j;
      
    if (n < nExisting && javaTokWithExisting_isCopyable(existing.get(n), s, i, j))
      tok.add(existing.get(n));
    else
      tok.add(javaTok_substringC(s, i, j));
    ++n;
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  javaTok_elements += tok.size();
  return tok;
}

static boolean javaTokWithExisting_isCopyable(String t, String s, int i, int j) {
  return t.length() == j-i
    && s.regionMatches(i, t, 0, j-i); // << could be left out, but that's brave
}
// returns from C to C
static String jextract(String pat, String s) {
  return jextract(pat, javaTok(s));
}

static String jextract(String pat, List<String> tok) {
  List<String> tokpat = javaTok(pat);
  jfind_preprocess(tokpat);
  int i = jfind(tok, tokpat);
  if (i < 0) return null;
  int j = i + l(tokpat) - 2;
  return join(subList(tok, i, j));
}

static <A, B> Collection<B> values(Map<A, B> map) {
  return map == null ? emptyList() : map.values();
}




static boolean isEmpty(Collection c) {
  return c == null || c.isEmpty();
}

static boolean isEmpty(CharSequence s) {
  return s == null || s.length() == 0;
}

static boolean isEmpty(Object[] a) { return a == null || a.length == 0; }
static boolean isEmpty(byte[] a) { return a == null || a.length == 0; }

static boolean isEmpty(Map map) {
  return map == null || map.isEmpty();
}
static int parseInt(String s) {
  return empty(s) ? 0 : Integer.parseInt(s);
}

static int parseInt(char c) {
  return Integer.parseInt(str(c));
}
static Object getOpt(Object o, String field) {
  return getOpt_cached(o, field);
}

static Object getOpt_raw(Object o, String field) {
  try {
    Field f = getOpt_findField(o.getClass(), field);
    if (f == null) return null;
    f.setAccessible(true);
    return f.get(o);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

// access of static fields is not yet optimized
static Object getOpt(Class c, String field) {
  try {
    if (c == null) return null;
    Field f = getOpt_findStaticField(c, field);
    if (f == null) return null;
    f.setAccessible(true);
    return f.get(null);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Field getOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

static char lastChar(String s) {
  return empty(s) ? '\0' : s.charAt(l(s)-1);
}
static boolean possibleMD5(String s) { return isMD5(s); }
static File userDir() {
  return new File(userHome());
}

static File userDir(String path) {
  return new File(userHome(), path);
}


static volatile Throwable lastException_lastException;

static Throwable lastException() {
  return lastException_lastException;
}

static void lastException(Throwable e) {
  lastException_lastException = e;
}
static int jfind(String s, String in) {
  return jfind(javaTok(s), in);
}

static int jfind(List<String> tok, String in) {
  return jfind(tok, 1, in);
}

static int jfind(List<String> tok, int startIdx, String in) {
  return jfind(tok, startIdx, in, null);
}

static int jfind(List<String> tok, String in, Object condition) {
  return jfind(tok, 1, in, condition);
}

static int jfind(List<String> tok, int startIdx, String in, Object condition) {
  List<String> tokin = javaTok(in);
  jfind_preprocess(tokin);
  return jfind(tok, startIdx, tokin, condition);
}

// assumes you preprocessed tokin
static int jfind(List<String> tok, List<String> tokin) {
  return jfind(tok, 1, tokin);
}

static int jfind(List<String> tok, int startIdx, List<String> tokin) {
  return jfind(tok, startIdx, tokin, null);
}

static int jfind(List<String> tok, int startIdx, List<String> tokin, Object condition) {
  return findCodeTokens(tok, startIdx, false, toStringArray(codeTokensOnly(tokin)), condition);
}

static List<String> jfind_preprocess(List<String> tok) {
  for (String type : litlist("quoted", "id", "int"))
    replaceSublist(tok, ll("<", "", type, "", ">"), ll("<" + type + ">"));
  replaceSublist(tok, ll("\\", "", "*"), ll("\\*"));
  return tok;
}
static String replacePrefix(String prefix, String replacement, String s) {
  if (!startsWith(s, prefix)) return s;
  return replacement + substring(s, l(prefix));
}
static volatile String caseID_caseID;

static String caseID() { return caseID_caseID; }

static void caseID(String id) {
  caseID_caseID = id;
}
static int min(int a, int b) {
  return Math.min(a, b);
}

static long min(long a, long b) {
  return Math.min(a, b);
}

static float min(float a, float b) { return Math.min(a, b); }
static float min(float a, float b, float c) { return min(min(a, b), c); }

static double min(double a, double b) {
  return Math.min(a, b);
}

static double min(double[] c) {
  double x = Double.MAX_VALUE;
  for (double d : c) x = Math.min(x, d);
  return x;
}

static float min(float[] c) {
  float x = Float.MAX_VALUE;
  for (float d : c) x = Math.min(x, d);
  return x;
}

static byte min(byte[] c) {
  byte x = 127;
  for (byte d : c) if (d < x) x = d;
  return x;
}

static short min(short[] c) {
  short x = 0x7FFF;
  for (short d : c) if (d < x) x = d;
  return x;
}

static int min(int[] c) {
  int x = Integer.MAX_VALUE;
  for (int d : c) if (d < x) x = d;
  return x;
}
static <A> ArrayList<A> litlist(A... a) {
  ArrayList l = new ArrayList(a.length);
  for (A x : a) l.add(x);
  return l;
}
static String hideCredentials(URL url) { return url == null ? null : hideCredentials(str(url)); }

static String hideCredentials(String url) {
  return url.replaceAll("([&?])_pass=[^&\\s\"]*", "$1_pass=<hidden>");
}

static String hideCredentials(Object o) {
  return hideCredentials(str(o));
}
static int max(int a, int b) { return Math.max(a, b); }
static int max(int a, int b, int c) { return max(max(a, b), c); }
static long max(int a, long b) { return Math.max((long) a, b); }
static long max(long a, long b) { return Math.max(a, b); }
static double max(int a, double b) { return Math.max((double) a, b); }
static float max(float a, float b) { return Math.max(a, b); }
static double max(double a, double b) { return Math.max(a, b); }

static int max(Collection<Integer> c) {
  int x = Integer.MIN_VALUE;
  for (int i : c) x = max(x, i);
  return x;
}

static double max(double[] c) {
  if (c.length == 0) return Double.MIN_VALUE;
  double x = c[0];
  for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]);
  return x;
}

static float max(float[] c) {
  if (c.length == 0) return Float.MAX_VALUE;
  float x = c[0];
  for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]);
  return x;
}

static byte max(byte[] c) {
  byte x = -128;
  for (byte d : c) if (d > x) x = d;
  return x;
}

static short max(short[] c) {
  short x = -0x8000;
  for (short d : c) if (d > x) x = d;
  return x;
}

static int max(int[] c) {
  int x = Integer.MIN_VALUE;
  for (int d : c) if (d > x) x = d;
  return x;
}
static Throwable getInnerException(Throwable e) {
  while (e.getCause() != null)
    e = e.getCause();
  return e;
}
static boolean sameSnippetID(String a, String b) {
  if (!isSnippetID(a) || !isSnippetID(b)) return false;
  return parseSnippetID(a) == parseSnippetID(b);
}
static Field getOpt_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static boolean isIdentifier(String s) {
  return isJavaIdentifier(s);
}
static boolean isInteger(String s) {
  if (s == null) return false;
  int n = l(s);
  if (n == 0) return false;
  int i = 0;
  if (s.charAt(0) == '-')
    if (++i >= n) return false;
  while (i < n) {
    char c = s.charAt(i);
    if (c < '0' || c > '9') return false;
    ++i;
  }
  return true;
}
// supports the usual quotings (", variable length double brackets) except ' quoting
static boolean isQuoted(String s) {
  
  
  if (isNormalQuoted(s)) return true; // use the exact version
  
  return isMultilineQuoted(s);
}
static boolean checkTokCondition(Object condition, List<String> tok, int i) {
  if (condition instanceof TokCondition)
    return ((TokCondition) condition).get(tok, i);
  return checkCondition(condition, tok, i);
}
//static final Map<Class, HashMap<S, Field>> getOpt_cache = newDangerousWeakHashMap(f getOpt_special_init);

static class getOpt_Map extends WeakHashMap {
  getOpt_Map() {
    if (getOpt_special == null) getOpt_special = new HashMap();
    clear();
  }
  
  public void clear() {
    super.clear();
    //print("getOpt clear");
    put(Class.class, getOpt_special);
    put(String.class, getOpt_special);
  }
}

static final Map<Class, HashMap<String, Field>> getOpt_cache = _registerDangerousWeakMap(synchroMap(new getOpt_Map()));
//static final Map<Class, HashMap<S, Field>> getOpt_cache = _registerWeakMap(synchroMap(new getOpt_Map));
static HashMap getOpt_special; // just a marker

/*static void getOpt_special_init(Map map) {
  map.put(Class.class, getOpt_special);
  map.put(S.class, getOpt_special);
}*/

static Object getOpt_cached(Object o, String field) { try {
  if (o == null) return null;

  Class c = o.getClass();
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class)
      return getOpt((Class) o, field);
    /*if (o instanceof S)
      ret getOpt(getBot((S) o), field);*/
    if (o instanceof Map)
      return ((Map) o).get(field);
  }
    
  Field f = map.get(field);
  if (f != null) return f.get(o);
  
  return null;
} catch (Exception __e) { throw rethrow(__e); } }

// used internally - we are in synchronized block
static HashMap<String, Field> getOpt_makeCache(Class c) {
  HashMap<String, Field> map;
  if (isSubtypeOf(c, Map.class))
    map = getOpt_special;
  else {
    map = new HashMap();
    Class _c = c;
    do {
      for (Field f : _c.getDeclaredFields()) {
        f.setAccessible(true);
        String name = f.getName();
        if (!map.containsKey(name))
          map.put(name, f);
      }
      _c = _c.getSuperclass();
    } while (_c != null);
  }
  getOpt_cache.put(c, map);
  return map;
}
static String programID() {
  return getProgramID();
}
static boolean eqic(String a, String b) {
  
  
    if ((a == null) != (b == null)) return false;
    if (a == null) return true;
    return a.equalsIgnoreCase(b);
  
}



static boolean eqic(char a, char b) {
  if (a == b) return true;
  
    char u1 = Character.toUpperCase(a);
    char u2 = Character.toUpperCase(b);
    if (u1 == u2) return true;
  
  return Character.toLowerCase(u1) == Character.toLowerCase(u2);
}
static boolean isMD5(String s) {
  return l(s) == 32 && isLowerHexString(s);
}


static boolean isLowerHexString(String s) {
  for (int i = 0; i < l(s); i++) {
    char c = s.charAt(i);
    if (c >= '0' && c <= '9' || c >= 'a' && c <= 'f') {
      // ok
    } else
      return false;
  }
  return true;
}
static boolean checkCondition(Object condition, Object... args) {
  return isTrue(callF(condition, args));
}
static <A, B> void put(Map<A, B> map, A a, B b) {
  if (map != null) map.put(a, b);
}
static String asString(Object o) {
  return o == null ? null : o.toString();
}
static <A> List<A> replaceSublist(List<A> l, List<A> x, List<A> y) {
  if (x == null) return l;
  
  int i = 0;
  while (true) {
    i = indexOfSubList(l, x, i);
    if (i < 0) break;
    
    // It's inefficient :D
    for (int j = 0; j < l(x); j++) l.remove(i);
    l.addAll(i, y);
    i += l(y);
  }
  return l;
}

static <A> List<A> replaceSublist(List<A> l, int fromIndex, int toIndex, List<A> y) {
  // inefficient
  while (toIndex > fromIndex) l.remove(--toIndex);
  l.addAll(fromIndex, y);
  return l;
}
  static List<String> codeTokensOnly(List<String> tok) {
    List<String> l = new ArrayList();
    for (int i = 1; i < tok.size(); i += 2)
      l.add(tok.get(i));
    return l;
  }
static boolean isSubtypeOf(Class a, Class b) {
  return b.isAssignableFrom(a); // << always hated that method, let's replace it!
}
static List<Pair> _registerDangerousWeakMap_preList;

static <A> A _registerDangerousWeakMap(A map) {
  return _registerDangerousWeakMap(map, null);
}

static <A> A _registerDangerousWeakMap(A map, Object init) {
  callF(init, map);
  
  if (init instanceof String) {
    final String f = (String) ( init);
    init = new VF1<Map>() { void get(Map map) { try {  callMC(f, map) ; } catch (Exception __e) { throw rethrow(__e); } }
  public String toString() { return "callMC(f, map)"; }};
  }
    
  if (javax() == null) {
    // We're in class init
    if (_registerDangerousWeakMap_preList == null) _registerDangerousWeakMap_preList = synchroList();
    _registerDangerousWeakMap_preList.add(pair(map, init));
    return map;
  }
  
  try {
    call(javax(), "_registerDangerousWeakMap", map, init);
  } catch (Throwable e) { printException(e);
    upgradeJavaXAndRestart();
  }
  return map;
}

static void _onLoad_registerDangerousWeakMap() {
  assertNotNull(javax());
  if (_registerDangerousWeakMap_preList == null) return;
  for (Pair p : _registerDangerousWeakMap_preList)
    _registerDangerousWeakMap(p.a, p.b);
  _registerDangerousWeakMap_preList = null;
}
static boolean isNormalQuoted(String s) {
  int l = l(s);
  if (!(l >= 2 && s.charAt(0) == '"' && lastChar(s) == '"')) return false;
  int j = 1;
  while (j < l)
    if (s.charAt(j) == '"')
      return j == l-1;
    else if (s.charAt(j) == '\\' && j+1 < l)
      j += 2;
    else
      ++j;
  return false;
}
static boolean isJavaIdentifier(String s) {
  if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0)))
    return false;
  for (int i = 1; i < s.length(); i++)
    if (!Character.isJavaIdentifierPart(s.charAt(i)))
      return false;
  return true;
}
static boolean isMultilineQuoted(String s) {
  if (!startsWith(s, "[")) return false;
  int i = 1;
  while (i < s.length() && s.charAt(i) == '=') ++i;
  return i < s.length() && s.charAt(i) == '[';
}
static void clear(Collection c) {
  if (c != null) c.clear();
}


static boolean isTrue(Object o) {
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue();
  if (o == null) return false;
  if (o instanceof ThreadLocal)
    return isTrue(((ThreadLocal) o).get());
  throw fail(getClassName(o));
}
static <A> int indexOfSubList(List<A> x, List<A> y) {
  return indexOfSubList(x, y, 0);
}

static <A> int indexOfSubList(List<A> x, List<A> y, int i) {
  outer: for (; i+l(y) <= l(x); i++) {
    for (int j = 0; j < l(y); j++)
      if (neq(x.get(i+j), y.get(j)))
        continue outer;
    return i;
  }
  return -1;
}

static <A> int indexOfSubList(List<A> x, A[] y, int i) {
  outer: for (; i+l(y) <= l(x); i++) {
    for (int j = 0; j < l(y); j++)
      if (neq(x.get(i+j), y[j]))
        continue outer;
    return i;
  }
  return -1;
}
static void upgradeJavaXAndRestart() {
  
    run("#1001639");
    restart();
    sleep();
  
  
}


static volatile boolean sleep_noSleep;

static void sleep(long ms) {
  ping();
  if (ms < 0) return;
  // allow spin locks
  if (isAWTThread() && ms > 100) throw fail("Should not sleep on AWT thread");
  try {
    Thread.sleep(ms);
  } catch (Exception e) { throw new RuntimeException(e); }
}

static void sleep() { try {
  if (sleep_noSleep) throw fail("nosleep");
  print("Sleeping.");
  sleepQuietly();
} catch (Exception __e) { throw rethrow(__e); } }
static Class run(String progID, String... args) {
  Class main = hotwire(progID);
  callMain(main, args);
  return main;
}
static void restart() {
  Object j = getJavaX();
  call(j, "cleanRestart", get(j, "fullArgs"));
}


static <A> A callMain(A c, String... args) {
  callOpt(c, "main", new Object[] {args});
  return c;
}

static void callMain() {
  callMain(mc());
}
static Object sleepQuietly_monitor = new Object();

static void sleepQuietly() { try {
  assertFalse(isAWTThread());
  synchronized(sleepQuietly_monitor) { sleepQuietly_monitor.wait(); }
} catch (Exception __e) { throw rethrow(__e); } }
static Class<?> hotwire(String src) {
  assertFalse(_inCore());
  Class j = getJavaX();
  if (isAndroid()) {
    synchronized(j) { // hopefully this goes well...
      List<File> libraries = new ArrayList<File>();
      File srcDir = (File) call(j, "transpileMain", src, libraries);
      if (srcDir == null)
        throw fail("transpileMain returned null (src=" + quote(src) + ")");
    
      Object androidContext = get(j, "androidContext");
      return (Class) call(j, "loadx2android", srcDir, src);
    }
  } else {
    
    
    Class c = (Class) ( call(j, "hotwire", src));
    hotwire_copyOver(c);
    return c;
    
  }
}


static String quote(Object o) {
  if (o == null) return "null";
  return quote(str(o));
}

static String quote(String s) {
  if (s == null) return "null";
  StringBuilder out = new StringBuilder((int) (l(s)*1.5+2));
  quote_impl(s, out);
  return out.toString();
}
  
static void quote_impl(String s, StringBuilder out) {
  out.append('"');
  int l = s.length();
  for (int i = 0; i < l; i++) {
    char c = s.charAt(i);
    if (c == '\\' || c == '"')
      out.append('\\').append(c);
    else if (c == '\r')
      out.append("\\r");
    else if (c == '\n')
      out.append("\\n");
    else
      out.append(c);
  }
  out.append('"');
}
static boolean _inCore() {
  return false;
}
static void hotwire_copyOver(Class c) {
  synchronized(StringBuffer.class) {
    for (String field : litlist("print_log", "print_silent", "androidContext")) {
      Object o = getOpt(mc(), field);
      if (o != null)
        setOpt(c, field, o);
    }
      
    Object mainBot = getMainBot();
    if (mainBot != null)
      setOpt(c, "mainBot", mainBot);

    setOpt(c, "creator_class", new WeakReference(mc()));
  }
}
static Object callOpt(Object o) {
  if (o == null) return null;
  return callF(o);
}

static Object callOpt(Object o, String method, Object... args) {
  try {
    if (o == null) return null;
    if (o instanceof Class) {
      Method m = callOpt_findStaticMethod((Class) o, method, args, false);
      if (m == null) return null;
      m.setAccessible(true);
      return invokeMethod(m, null, args);
    } else {
      Method m = callOpt_findMethod(o, method, args, false);
      if (m == null) return null;
      m.setAccessible(true);
      return invokeMethod(m, o, args);
    }
  } catch (Exception e) {
    //fail(e.getMessage() + " | Method: " + method + ", receiver: " + className(o) + ", args: (" + join(", ", map(f className, args) + ")");
    throw rethrow(e);
  }
}

static Method callOpt_findStaticMethod(Class c, String method, Object[] args, boolean debug) {
  Class _c = c;
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (!m.getName().equals(method)) {
        if (debug) System.out.println("Method name mismatch: " + method);
        continue;
      }

      if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) == 0 || !callOpt_checkArgs(m, args, debug))
        continue;

      return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

static Method callOpt_findMethod(Object o, String method, Object[] args, boolean debug) {
  Class c = o.getClass();
  while (c != null) {
    for (Method m : c.getDeclaredMethods()) {
      if (debug)
        System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");;
      if (m.getName().equals(method) && callOpt_checkArgs(m, args, debug))
        return m;
    }
    c = c.getSuperclass();
  }
  return null;
}

private static boolean callOpt_checkArgs(Method m, Object[] args, boolean debug) {
  Class<?>[] types = m.getParameterTypes();
  if (types.length != args.length) {
    if (debug)
      System.out.println("Bad parameter length: " + args.length + " vs " + types.length);
    return false;
  }
  for (int i = 0; i < types.length; i++)
    if (!(args[i] == null || isInstanceX(types[i], args[i]))) {
      if (debug)
        System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]);
      return false;
    }
  return true;
}


static void assertFalse(Object o) {
  if (!(eq(o, false) /*|| isFalse(pcallF(o))*/))
    throw fail(str(o));
}
  
static boolean assertFalse(boolean b) {
  if (b) throw fail("oops");
  return b;
}

static boolean assertFalse(String msg, boolean b) {
  if (b) throw fail(msg);
  return b;
}



static Object mainBot;

static Object getMainBot() {
  return mainBot;
}
static Field setOpt_findField(Class c, String field) {
  HashMap<String, Field> map;
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  return map.get(field);
}

static void setOpt(Object o, String field, Object value) { try {
  if (o == null) return;
  
  
  
  Class c = o.getClass();
  HashMap<String, Field> map;
  
  synchronized(getOpt_cache) {
    map = getOpt_cache.get(c);
    if (map == null)
      map = getOpt_makeCache(c);
  }
  
  if (map == getOpt_special) {
    if (o instanceof Class) {
      setOpt((Class) o, field, value);
      return;
    }
    
    // It's probably a subclass of Map. Use raw method
    setOpt_raw(o, field, value);
    return;
  }
  
  Field f = map.get(field);
  if (f != null)
    smartSet(f, o, value); // possible improvement: skip setAccessible
} catch (Exception __e) { throw rethrow(__e); } }

static void setOpt(Class c, String field, Object value) {
  if (c == null) return;
  try {
    Field f = setOpt_findStaticField(c, field);
    if (f != null)
      smartSet(f, null, value);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
  
static Field setOpt_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0) {
        f.setAccessible(true);
        return f;
      }
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}


static void setOpt_raw(Object o, String field, Object value) { try {
  if (o == null) return;
  if (o instanceof Class) setOpt_raw((Class) o, field, value);
  else {
    Field f = setOpt_raw_findField(o.getClass(), field);
    if (f != null) {
      f.setAccessible(true);
      smartSet(f, o, value);
    }
  }
} catch (Exception __e) { throw rethrow(__e); } }

static void setOpt_raw(Class c, String field, Object value) { try {
  if (c == null) return;
  Field f = setOpt_raw_findStaticField(c, field);
  if (f != null) {
    f.setAccessible(true);
    smartSet(f, null, value);
  }
} catch (Exception __e) { throw rethrow(__e); } }
  
static Field setOpt_raw_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

static Field setOpt_raw_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}
static void smartSet(Field f, Object o, Object value) throws Exception {
  try {
    f.set(o, value);
  } catch (Exception e) {
    Class type = f.getType();
    
    // take care of common case (long to int)
    if (type == int.class && value instanceof Long)
      value = ((Long) value).intValue();
    
    if (type == LinkedHashMap.class && value instanceof Map)
      { f.set(o, asLinkedHashMap((Map) value)); return; }
    
    
    throw e;
  }
}


static <A, B> LinkedHashMap<A, B> asLinkedHashMap(Map<A, B> map) {
  if (map instanceof LinkedHashMap) return (LinkedHashMap) map;
  LinkedHashMap<A,B> m = new LinkedHashMap();
  if (map != null) synchronized(collectionMutex(map)) {
    m.putAll(map);
  }
  return m;
}


static Object collectionMutex(Object o) {
  String c = className(o);
  if (eq(c, "java.util.TreeMap$KeySet"))
    c = className(o = getOpt(o, "m"));
  else if (eq(c, "java.util.HashMap$KeySet"))
    c = className(o = get_raw(o, "this$0"));

  
  
  if (eqOneOf(c, "java.util.TreeMap$AscendingSubMap", "java.util.TreeMap$DescendingSubMap"))
    c = className(o = get_raw(o, "m"));
    
  
    
  return o;
}


static String className(Object o) {
  return getClassName(o);
}
static boolean eqOneOf(Object o, Object... l) {
  for (Object x : l) if (eq(o, x)) return true; return false;
}


static abstract class VF1<A> {
  abstract void get(A a);
}static class Rect {
  int x, y, w, h;
  
  Rect() {}
  Rect(Rectangle r) {
    x = r.x;
    y = r.y;
    w = r.width;
    h = r.height;
  }
  Rect(int x, int y, int w, int h) {
  this.h = h;
  this.w = w;
  this.y = y;
  this.x = x;}
  
  Rectangle getRectangle() {
    return new Rectangle(x, y, w, h);
  }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
  
  public String toString() {
    return x + "," + y + " / " + w + "," + h;
  }
  
  int x2() { return x + w; }
  int y2() { return y + h; }
  
  boolean contains(Pt p) {
    return contains(p.x, p.y);
  }
  
  boolean contains(int _x, int _y) {
    return _x >= x && _y >= y && _x < x+w && _y < y+h;
  }
  
  boolean empty() { return w <= 0 || h <= 0; }
}static class Matches {
  String[] m;
  
  Matches() {}
  Matches(String... m) {
  this.m = m;}
  
  String get(int i) { return i < m.length ? m[i] : null; }
  String unq(int i) { return unquote(get(i)); }
  String fsi(int i) { return formatSnippetID(unq(i)); }
  String fsi() { return fsi(0); }
  String tlc(int i) { return unq(i).toLowerCase(); }
  boolean bool(int i) { return "true".equals(unq(i)); }
  String rest() { return m[m.length-1]; } // for matchStart
  int psi(int i) { return Integer.parseInt(unq(i)); }
}
static abstract class TokCondition {
  abstract boolean get(List<String> tok, int i); // i = N Index
}static abstract class F0<A> {
  abstract A get();
}static abstract class F1<A, B> {
  abstract B get(A a);
}// you still need to implement hasNext() and next()
static abstract class IterableIterator<A> implements Iterator<A>, Iterable<A> {
  public Iterator<A> iterator() {
    return this;
  }
  
  public void remove() {
    unsupportedOperation();
  }
}static class RGBImage {
  transient BufferedImage bufferedImage;
  File file;
  int width, height;
  int[] pixels;

  RGBImage() {}

  RGBImage(BufferedImage image) {
    this(image, null);
  }

  RGBImage(BufferedImage image, File file) {
    this.file = file;
    bufferedImage = image;
    width = image.getWidth();
    height = image.getHeight();
    pixels = new int[width*height];
    PixelGrabber pixelGrabber = new PixelGrabber(image, 0, 0, width, height, pixels, 0, width);
    try {
      if (!pixelGrabber.grabPixels())
        throw new RuntimeException("Could not grab pixels");
      cleanPixels(); // set upper byte to 0
    } catch (InterruptedException e) {
      throw new RuntimeException(e);
    }
  }

  /** We assume it's a file name to load from */
  RGBImage(String file) throws IOException {
    this(new File(file));
  }

  RGBImage(Dimension size, Color color) {
    this(size.width, size.height, color);
  }

  RGBImage(Dimension size, RGB color) {
    this(size.width, size.height, color);
  }

  private void cleanPixels() {
    for (int i = 0; i < pixels.length; i++)
      pixels[i] &= 0xFFFFFF;
  }

  RGBImage(int width, int height, int[] pixels) {
    this.width = width;
    this.height = height;
    this.pixels = pixels;
  }

  RGBImage(int w, int h, RGB[] pixels) {
    this.width = w;
    this.height = h;
    this.pixels = asInts(pixels);
  }

  public static int[] asInts(RGB[] pixels) {
    int[] ints = new int[pixels.length];
    for (int i = 0; i < pixels.length; i++)
      ints[i] = pixels[i] == null ? 0 : pixels[i].getColor().getRGB();
    return ints;
  }

  public RGBImage(int w, int h) {
    this(w, h, Color.black);
  }
  
  RGBImage(int w, int h, RGB rgb) {
    this.width = w;
    this.height = h;
    this.pixels = new int[w*h];
    int col = rgb.asInt();
    if (col != 0)
      for (int i = 0; i < pixels.length; i++)
        pixels[i] = col;
  }

  RGBImage(RGBImage image) {
    this(image.width, image.height, copyPixels(image.pixels));
  }

  RGBImage(int width, int height, Color color) {
    this(width, height, new RGB(color));
  }

  RGBImage(File file) throws IOException {
    this(javax.imageio.ImageIO.read(file));
  }

  private static int[] copyPixels(int[] pixels) {
    int[] copy = new int[pixels.length];
    System.arraycopy(pixels, 0, copy, 0, pixels.length);
    return copy;
  }

  public int getIntPixel(int x, int y) {
    if (inRange(x, y))
      return pixels[y * width + x];
    else
      return 0xFFFFFF;
  }

  public static RGB asRGB(int packed) {
    int r = (packed >> 16) & 0xFF;
    int g = (packed >> 8) & 0xFF;
    int b = packed & 0xFF;
    return new RGB(r / 255f, g / 255f, b / 255f);
  }

  public RGB getRGB(int x, int y) {
    if (inRange(x, y))
      return asRGB(pixels[y * width + x]);
    else
      return new RGB(0xFFFFFF);
  }

  /** alias of getRGB - I kept typing getPixel instead of getRGB all the time, so I finally created it */
  RGB getPixel(int x, int y) {
    return getRGB(x, y);
  }
  
  RGB getPixel(Pt p) { return getPixel(p.x, p.y); }

  int getWidth() { return width; }
  int getHeight() { return height; }
  int w() { return width; }
  int h() { return height; }

  /** Attention: cached, i.e. does not change when image itself changes */
  /** @NotNull */
  public BufferedImage getBufferedImage() {
    if (bufferedImage == null) {
      bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
      //bufferedImage.setData(Raster.createRaster(new SampleModel()));
      for (int y = 0; y < height; y++)
        for (int x = 0; x < width; x++)
          bufferedImage.setRGB(x, y, pixels[y*width+x]);
    }
    return bufferedImage;
  }

  RGBImage clip(Rect r) {
    return r == null ? null : clip(r.getRectangle());
  }
  
  RGBImage clip(Rectangle r) {
    r = fixClipRect(r);
    int[] newPixels;
    try {
      newPixels = new int[r.width*r.height];
    } catch (RuntimeException e) {
      System.out.println(r);
      throw e;
    }
    for (int y = 0; y < r.height; y++) {
      System.arraycopy(pixels, (y+r.y)*width+r.x, newPixels, y*r.width, r.width);
    }
    return new RGBImage(r.width, r.height, newPixels);
  }

  private Rectangle fixClipRect(Rectangle r) {
    r = r.intersection(new Rectangle(0, 0, width, height));
    if (r.isEmpty())
      r = new Rectangle(r.x, r.y, 0, 0);
    return r;
  }

  public File getFile() {
    return file;
  }

  /** can now also do GIF (not just JPEG) */
  public static RGBImage load(String fileName) {
    return load(new File(fileName));
  }

  /** can now also do GIF (not just JPEG) */
  public static RGBImage load(File file) {
    try {
      BufferedImage bufferedImage = javax.imageio.ImageIO.read(file);
      return new RGBImage(bufferedImage);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }

  public int getInt(int x, int y) {
    return pixels[y * width + x];
  }

  public void save(File file) throws IOException {
    String name = file.getName().toLowerCase();
    String type;
    if (name.endsWith(".png")) type = "png";
    else if (name.endsWith(".jpg") || name.endsWith(".jpeg")) type = "jpeg";
    else throw new IOException("Unknown image extension: " + name);
    javax.imageio.ImageIO.write(getBufferedImage(), type, file);
  }

  public static RGBImage dummyImage() {
    return new RGBImage(1, 1, new int[] {0xFFFFFF});
  }

  public int[] getPixels() {
    return pixels;
  }

  public void setPixel(int x, int y, RGB rgb) {
    if (x >= 0 && y >= 0 && x < width && y < height)
      pixels[y*width+x] = rgb.asInt();
  }

  public void setPixel(int x, int y, Color color) {
    setPixel(x, y, new RGB(color));
  }

  public void setPixel(int x, int y, int rgb) {
    if (x >= 0 && y >= 0 && x < width && y < height)
      pixels[y*width+x] = rgb;
  }
  
  void setPixel(Pt p, RGB rgb) { setPixel(p.x, p.y, rgb); }
  void setPixel(Pt p, Color color) { setPixel(p.x, p.y, color); }

  public RGBImage copy() {
    return new RGBImage(this);
  }

  public boolean inRange(int x, int y) {
    return x >= 0 && y >= 0 && x < width && y < height;
  }

  public Dimension getSize() {
    return new Dimension(width, height);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    RGBImage rgbImage = (RGBImage) o;

    if (height != rgbImage.height) return false;
    if (width != rgbImage.width) return false;
    if (!Arrays.equals(pixels, rgbImage.pixels)) return false;

    return true;
  }

  @Override
  public int hashCode() {
    int result = width;
    result = 31 * result + height;
    result = 31 * result + Arrays.hashCode(pixels);
    return result;
  }

  public String getHex(int x, int y) {
    return getPixel(x, y).getHexString();
  }

  public RGBImage clip(int x, int y, int width, int height) {
    return clip(new Rectangle(x, y, width, height));
  }

  public RGBImage clipLine(int y) {
    return clip(0, y, width, 1);
  }

  public int numPixels() {
    return width*height;
  }
}

static class BWImage {
  private int width, height;
  private BWImageSimpleStorage storage;

  // color returned when getPixel is called with a position outside the actual image
  private float borderColor = 0.0f;
  
  // for unstructure()
  BWImage() {}

  // BLACK! [Inefficient...]
  public BWImage(int width, int height) {
    this.width = width;
    this.height = height;
    byte[] bytePixels = new byte[width*height];
    storage = makeStorage(width, height, bytePixels);
  }

  public BWImage(int width, int height, float[] pixels) {
    this.width = width;
    this.height = height;
    byte[] bytePixels = new byte[pixels.length];
    for (int i = 0; i < pixels.length; i++)
      bytePixels[i] = toByte(pixels[i]);
    storage = makeStorage(width, height, bytePixels);
  }

  private BWImageSimpleStorage makeStorage(int width, int height, byte[] bytePixels) {
    return new BWImageSimpleStorage(width, height, bytePixels);
  }

  public BWImage(int width, int height, byte[] pixels) {
    this.height = height;
    this.width = width;
    storage = makeStorage(width, height, pixels);
  }

  public BWImage(BWImage image) {
    width = image.getWidth();
    height = image.getHeight();
    byte[] bytePixels = new byte[width*height];
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        bytePixels[y*width+x] = image.getByte(x, y);
    storage = makeStorage(width, height, bytePixels);
  }

  public BWImage(RGBImage image) {
    width = image.getWidth();
    height = image.getHeight();
    byte[] result = new byte[height*width];
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++) {
        RGB rgb = image.getRGB(x, y);
        result[y*width+x] = BWImage.toByte(rgb.getBrightness());
      }
    storage = makeStorage(width, height, result);
  }

  /*public BWImage(BufferedImage image) {
    this(new RGBImage(image));
  }*/

  BWImage(BufferedImage image) { try {
 width = image.getWidth();
    height = image.getHeight();
    int[] pixels = new int[width*height];
    byte[] bytePixels = new byte[width*height];
    PixelGrabber pixelGrabber = new PixelGrabber(image, 0, 0, width, height, pixels, 0, width);
    if (!pixelGrabber.grabPixels())
      throw fail("Could not grab pixels");
    int n = width*height;
    
    for (int i = 0; i < n; i++) {
      //bytePixels[i] = pixelToByte(pixels[i]);
      int packed = pixels[i];
      /*float r = ((packed >> 16) & 0xFF)/255f;
      float g = ((packed >> 8) & 0xFF)/255f;
      float b = (packed & 0xFF)/255f;
      bytePixels[i] = (byte) iround((r+g+b)/3.0f*255f);*/
      int r = ((packed >> 16) & 0xFF);
      int g = ((packed >> 8) & 0xFF);
      int b = (packed & 0xFF);
      bytePixels[i] = (byte) ((r+g+b+1)/3);
    }
    storage = makeStorage(width, height, bytePixels);
  } catch (Exception __e) { throw rethrow(__e); } }
  
  // TODO: does it exactly match the other method? (asRGB+getBrightness+toByte)
  static byte pixelToByte(int packed) {
    /*int r = (packed >> 16) & 0xFF;
    int g = (packed >> 8) & 0xFF;
    int b = packed & 0xFF;
    ret (byte) ((r+g+b)/3.0f);*/
    float r = ((packed >> 16) & 0xFF)/255f;
    float g = ((packed >> 8) & 0xFF)/255f;
    float b = (packed & 0xFF)/255f;
    return (byte) ((r+g+b)/3.0f*255f);
  }

  public byte getByte(int x, int y) {
    return inRange(x, y) ? storage.getByte(x,y ) : toByte(borderColor);
  }

  public BWImage(int width, int height, float brightness) {
    this.width = width;
    this.height = height;
    byte b = toByte(brightness);
    byte[] pixels = new byte[width*height];
    for (int i = 0; i < pixels.length; i++)
      pixels[i] = b;
    storage = makeStorage(width, height, pixels);
  }

  public double averageBrightness() {
    double sum = 0;
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        sum += getPixel(x, y);
    return (sum/(double) (height*width));
  }

  public float minimumBrightness() {
    float min = 1;
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        min = Math.min(min, getPixel(x, y));
    return min;
  }

  public float maximumBrightness() {
    float max = 0;
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        max = Math.max(max, getPixel(x, y));
    return max;
  }

  float getPixel(int x, int y) {
    return inRange(x, y) ? toFloat(storage.getByte(x,y )) : borderColor;
  }
  
  float getPixel(Pt p) { return getPixel(p.x, p.y); }

  public static byte toByte(float pixel) {
    return (byte) (pixel*255f);
  }

  public static float toFloat(byte pixel) {
    return (((int) pixel) & 255)/255f;
  }

  private boolean inRange(int x, int y) {
    return x >= 0 && x < width && y >= 0 && y < height;
  }

  public int getWidth() { return width; }
  int w() { return width; }

  public int getHeight() { return height; }
  int h() { return height; }

  public RGBImage toRGB() {
    RGB[] rgbs = new RGB[width*height];
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++) {
        float p = getPixel(x, y);
        rgbs[y*width+x] = new RGB(p, p, p);
      }
    return new RGBImage(width, height, rgbs);
  }

  public BWImage clip(int x, int y, int w, int h) {
    return clip(new Rectangle(x, y, w, h));
  }

  private Rectangle fixClipRect(Rectangle r) {
    return r.intersection(new Rectangle(0, 0, width, height));
  }

  BWImage clip(Rect r) {
    return clip(r.getRectangle());
  }
  
  /** this should be multithread-safe */
  public BWImage clip(Rectangle r) {
    r = fixClipRect(r);
    byte[] newPixels = new byte[r.height*r.width];
    for (int y = 0; y < r.height; y++)
      for (int x = 0; x < r.width; x++)
        newPixels[y*r.width+x] = getByte(r.x+x, r.y+y);
    return new BWImage(r.width, r.height, newPixels);
  }

  public void setPixel(int x, int y, float brightness) {
    storage.setByte(x, y, toByte(fixPixel(brightness)));
  }

  public void setByte(int x, int y, int brightness) {
    storage.setByte(x, y, (byte) brightness);
  }

  private float fixPixel(float pixel) {
    return Math.max(0, Math.min(1, pixel));
  }

  public float getBorderColor() {
    return borderColor;
  }

  public void setBorderColor(float borderColor) {
    this.borderColor = borderColor;
  }

  public boolean anyPixelBrighterThan(double threshold) {
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++)
        if (getPixel(x, y) > threshold)
          return true;
    return false;
  }
  
  BufferedImage getBufferedImage() {
    //ret toRGB().getBufferedImage();
    
    // TYPE_BYTE_GRAY is buggy - see #1015235
    BufferedImage bufferedImage = new BufferedImage(width, height, /*BufferedImage.TYPE_BYTE_GRAY*/BufferedImage.TYPE_INT_RGB);
    for (int y = 0; y < height; y++)
      for (int x = 0; x < width; x++) {
        int b = ((int) getByte(x, y) & 0xFF);
        bufferedImage.setRGB(x, y, b*0x010101);
      }
    return bufferedImage; 
  }
  
  byte[] getBytes() {
    return storage.pixels;
  }
}

static final class BWImageSimpleStorage {
  int width, height;
  byte[] pixels;
  
  // for unstructure()
  BWImageSimpleStorage() {}

  public BWImageSimpleStorage(int width, int height, byte[] pixels) {
    this.width = width;
    this.height = height;
    this.pixels = pixels;
  }

  public void setByte(int x, int y, byte b) {
    pixels[y*width+x] = b;
  }

  public byte getByte(int x, int y) {
    return pixels[y*width+x];
  }
}static class Pair<A, B> implements Comparable<Pair<A, B>> {
  A a;
  B b;

  Pair() {}
  Pair(A a, B b) {
  this.b = b;
  this.a = a;}
  
  public int hashCode() {
    return hashCodeFor(a) + 2*hashCodeFor(b);
  }
  
  public boolean equals(Object o) {
    if (o == this) return true;
    if (!(o instanceof Pair)) return false;
    Pair t = (Pair) o;
    return eq(a, t.a) && eq(b, t.b);
  }
  
  public String toString() {
    return "<" + a + ", " + b + ">";
  }
  
  public int compareTo(Pair<A, B> p) {
    if (p == null) return 1;
    int i = ((Comparable<A>) a).compareTo(p.a);
    if (i != 0) return i;
    return ((Comparable<B>) b).compareTo(p.b);
  }
}

static class Pt {
  int x, y;
  
  Pt() {}
  Pt(Point p) {
    x = p.x;
    y = p.y;
  }
  Pt(int x, int y) {
  this.y = y;
  this.x = x;}
  
  Point getPoint() {
    return new Point(x, y);
  }
  
  public boolean equals(Object o) { return stdEq2(this, o); }
public int hashCode() { return stdHash2(this); }
  
  public String toString() {
    return x + ", " + y;
  }
}static class RGB {
  public float r, g, b; // can't be final cause persistence
  
  RGB() {}
  
  public RGB(float r, float g, float b) {
    this.r = r;
    this.g = g;
    this.b = b;
  }

  public RGB(double r, double g, double b) {
    this.r = (float) r;
    this.g = (float) g;
    this.b = (float) b;
  }

  public RGB(int rgb) {
    this(new Color(rgb));
  }
  
  public RGB(double brightness) {
    this.r = this.g = this.b = max(0f, min(1f, (float) brightness));
  }

  public RGB(Color color) {
    this.r = color.getRed()/255f;
    this.g = color.getGreen()/255f;
    this.b = color.getBlue()/255f;
  }

  public RGB(String hex) {
    r = Integer.parseInt(hex.substring(0, 2), 16)/255f;
    g = Integer.parseInt(hex.substring(2, 4), 16)/255f;
    b = Integer.parseInt(hex.substring(4, 6), 16)/255f;
  }

  public float getComponent(int i) {
    return i == 0 ? r : i == 1 ? g : b;
  }

  public Color getColor() {
    return new Color(r, g, b);
  }

  public static RGB newSafe(float r, float g, float b) {
    return new RGB(Math.max(0, Math.min(1, r)), Math.max(0, Math.min(1, g)), Math.max(0, Math.min(1, b)));
  }

  int asInt() { return getColor().getRGB() & 0xFFFFFF; }
  int getInt() { return getColor().getRGB() & 0xFFFFFF; }

  public float getBrightness() {
    return (r+g+b)/3.0f;
  }

  public String getHexString() {
    return Integer.toHexString(asInt() | 0xFF000000).substring(2).toUpperCase();
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (!(o instanceof RGB)) return false;

    RGB rgb = (RGB) o;

    if (Float.compare(rgb.b, b) != 0) return false;
    if (Float.compare(rgb.g, g) != 0) return false;
    if (Float.compare(rgb.r, r) != 0) return false;

    return true;
  }

  @Override
  public int hashCode() {
    int result = (r != +0.0f ? Float.floatToIntBits(r) : 0);
    result = 31 * result + (g != +0.0f ? Float.floatToIntBits(g) : 0);
    result = 31 * result + (b != +0.0f ? Float.floatToIntBits(b) : 0);
    return result;
  }

  public boolean isBlack() {
    return r == 0f && g == 0f && b == 0f;
  }

  public boolean isWhite() {
    return r == 1f && g == 1f && b == 1f;
  }

  public String toString() {
    return getHexString();
  }
}

static <A> Iterator<A> iterator(Iterable<A> c) {
  return c == null ? emptyIterator() : c.iterator();
}
static UnsupportedOperationException unsupportedOperation() {
  throw new UnsupportedOperationException();
}
static boolean contains(Collection c, Object o) {
  return c != null && c.contains(o);
}

static boolean contains(Object[] x, Object o) {
  if (x != null)
    for (Object a : x)
      if (eq(a, o))
        return true;
  return false;
}

static boolean contains(String s, char c) {
  return s != null && s.indexOf(c) >= 0;
}

static boolean contains(String s, String b) {
  return s != null && s.indexOf(b) >= 0;
}

static boolean contains(BitSet bs, int i) {
  return bs != null && bs.get(i);
}
static int hashCodeFor(Object a) {
  return a == null ? 0 : a.hashCode();
}
static boolean stdEq2(Object a, Object b) {
  if (a == null) return b == null;
  if (b == null) return false;
  if (a.getClass() != b.getClass()) return false;
  for (String field : allFields(a))
    if (neq(getOpt(a, field), getOpt(b, field)))
      return false;
  return true;
}
static String fsi(String id) {
  return formatSnippetID(id);
}
static Class<?> getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

static Class getClass(Object o) {
  return o instanceof Class ? (Class) o : o.getClass();
}

static Class getClass(Object realm, String name) { try {
  try {
    return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
  } catch (ClassNotFoundException e) {
    return null;
  }
} catch (Exception __e) { throw rethrow(__e); } }
static int stdHash2(Object a) {
  if (a == null) return 0;
  return stdHash(a, toStringArray(allFields(a)));
}
static boolean inRange(int x, int n) {
  return x >= 0 && x < n;
}
static int asInt(Object o) {
  return toInt(o);
}


static Iterator emptyIterator() {
  return Collections.emptyIterator();
}
static String classNameToVM(String name) {
  return name.replace(".", "$");
}
static Set<String> allFields(Object o) {
  TreeSet<String> fields = new TreeSet();
  Class _c = _getClass(o);
  do {
    for (Field f : _c.getDeclaredFields())
      fields.add(f.getName());
    _c = _c.getSuperclass();
  } while (_c != null);
  return fields;
}
static int stdHash(Object a, String... fields) {
  if (a == null) return 0;
  int hash = getClassName(a).hashCode();
  for (String field : fields)
    hash = hash*2+hashCode(getOpt(a, field));
  return hash;
}
static int toInt(Object o) {
  if (o == null) return 0;
  if (o instanceof Number)
    return ((Number) o).intValue();
  if (o instanceof String)
    return parseInt((String) o);
  throw fail("woot not int: " + getClassName(o));
}

static int toInt(long l) {
  if (l != (int) l) throw fail("Too large for int: " + l);
  return (int) l;
}


static Class<?> _getClass(String name) {
  try {
    return Class.forName(name);
  } catch (ClassNotFoundException e) {
    return null; // could optimize this
  }
}

static Class _getClass(Object o) {
  return o == null ? null
    : o instanceof Class ? (Class) o : o.getClass();
}

static Class _getClass(Object realm, String name) { try {
  return getClass(realm).getClassLoader().loadClass(classNameToVM(name));
} catch (Exception __e) { throw rethrow(__e); } }
static int hashCode(Object a) {
  return a == null ? 0 : a.hashCode();
}

}