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 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.*;
public class main {
static class Puzzler {
  List<String> remainingTokens = new ArrayList<String>();
  List<String> numbers = new ArrayList<String>();
  List<String> vars = new ArrayList<String>();
  
  Puzzler(String tokens) {
    for (String s : codeTokens(javaTok(tokens)))
      if (eq(s, "i") || eq(s, "j"))
        vars.add(s);
      else if (isInteger(s))
        numbers.add(s);
      else
        remainingTokens.add(s);
  }
  
  String var() {
    return oneOf(vars);
  }
  
  String exp() {
    /*int i = random(2);
    S s = "?";
    switch (i) {
      case 0: s = "0";
      case 1: s = "9";
    }*/
    String s = oneOf(concatLists(numbers, vars));
    
    if (random(3) == 0) s = "get(" + s + ")";
    return s;
  }
  
  String swap() {
    return "swap(" + exp() + ", " + exp() + ")\n";
  }
  
  String _for() {
    return "for " + var() + " = " + exp() + " to " + exp() + "-1\n"
      + indentx(code())
      + "end\n";
  }
  
  String ifless() {
    return "if " + exp() + " < " + exp() + " then\n" 
      + indentx(code())
      + "end\n";
  }
  
  String code() {
    String s = choose("swap", "for", "ifless");
    if (s == null) return "<OUT OF OPTIONS>";
    return (String) call(this, eq(s, "for") ? "_for" : s);
    /*if (eq(s, "swap"))
      ret swap();
    if (eq(s, "for"))
      ret for();*/
  }
  
  String choose(String... options) {
    List<String> l = new ArrayList<String>();
    for (String s : options)
      if (remainingTokens.contains(s))
        l.add(s);
    String choice = oneOf(l);
    if (choice != null)
      remainingTokens.remove(choice);
    return choice;
  }
}
 // Puzzler for Bubblesort
static class Grid {
  int[] mem = new int[0];
  
  void set(int addr, int x) {
    if (addr < 0) return;
    expandTo(addr);
    mem[addr] = x;
  }
  
  void set(int addr, int[] x) {
    for (int i = l(x)-1; i >= 0; i--)
      set(addr+i, x[i]);
  }
  
  int get(int addr) {
    if (addr < 0 || addr >= l(mem))
      return 0;
    return mem[addr];
  }

  void expandTo(int n) {
    if (n >= l(mem)) {
      int[] m = new int[max(n+1, l(mem)*2)];
      arraycopy(mem, 0, m, 0, l(mem));
      mem = m;
    }
  }
  
  int lastNonZero() {
    int i = l(mem)-1;
    while (i > 0 && get(i) == 0) --i;
    return i;
  }
  
  int[] getRange(int a, int b) {
    return subArray(mem, a, b);
  }
}

// opcodes

static final int
  op_return = 0,
  op_nop    = 1,
  op_jump   = 2,
  op_jump_rel = 16,
  op_branchif = 3,
  op_branchifnot = 4,
  op_less = 5,
  op_less_im = 17, // highest
  op_equal = 6,
  op_more = 7,
  op_set = 8,
  op_set_ind = 9,
  op_copy = 10,
  op_copy_ind = 11,
  op_add = 12,
  op_add_im = 13,
  op_not = 14,
  op_neg = 15,
  op_illegal = 999;
  
static int runProgram_maxSteps = 1000*1000;

static void runProgram(Grid g, int pc) {
  new Runner(g, pc, runProgram_maxSteps);
}

static class Runner {
  Grid g;
  int pc;
  
  Runner(Grid g, int startAddress, int steps) {
  this.g = g;
    pc = startAddress;
    boolean flag = false;
    for (int step = 0; step < steps; step++) {
      int opcode = g.get(pc++);
      int a, b;
      switch (opcode) {
               case op_return: return;
               case op_nop:
        break; case op_jump: pc = g.get(pc);
        break; case op_jump_rel: pc += g.get(pc)-1;
        break; case op_branchif: if (flag) pc = g.get(pc); else ++pc;
        break; case op_branchifnot: if (!flag) pc = g.get(pc); else ++pc;
        break; case op_less: a = y(); b = y(); flag = a < b;
        break; case op_less_im: a = y(); b = x(); flag = a < b;
        break; case op_equal: a = y(); b = y(); flag = a == b;
        break; case op_more: a = y(); b = y(); flag = a > b;
        break; case op_set: a = x(); set(x(), a);
        break; case op_set_ind: a = x(); set(y(), a);
        break; case op_copy: a = y(); set(x(), a);
        break; case op_copy_ind: a = y(); set(y(), a);
        break; case op_add: a = x(); b = x(); set(a, get(a)+get(b));
        break; case op_add_im: a = x(); b = x(); set(a, get(a)+b);
        break; case op_not: a = x(); set(a, ~get(a));
        break; case op_neg: a = x(); set(a, -get(a));
        default: fail("Illegal opcode " + opcode + " at " + (pc-1));
      }
    }
  }
  
  int x() { return get(pc++); }
  int y() { return get(get(pc++)); }
  int get(int addr) { return g.get(addr); }
  void set(int addr, int x) { g.set(addr, x); }
}

static void testProgram(Grid g, int startAddress, int... values) {
  runProgram(g, startAddress);
  for (int i = 0; i < l(values); i += 2)
    assertEquals(values[i+1], g.get(values[i]));
  //print("Program OK (" + n(l(program), "int") + ", " + n(l(values)/2, "value") + ")");
  print("Program OK (" + n(l(values)/2, "value") + ")");
}

static void disassemble(Grid g, int pc) {
  print(new Disassembler(g, pc).buf);
}

static class Disassembler {
  Grid g;
  int pc;
  StringBuffer buf = new StringBuffer();
  
  Disassembler(Grid g, int startAddress) {
  this.g = g;
    pc = startAddress;
    int end = g.lastNonZero();
    while (pc < end) {
      int opcode = g.get(pc++);
      int a, b;
      String s = "?";
      switch (opcode) {
               case op_return: s = "return";
        break; case op_nop: s = "nop";
        break; case op_jump: s = "jump " + x();
        break; case op_jump_rel: s = "jump rel " + x();
        break; case op_branchif: s = "branch if " + x();
        break; case op_branchifnot: s = "branch if not " + x();
        break; case op_less: a = x(); b = x(); s = "less " + a + " " + b;
        break; case op_less_im: a = x(); b = x(); s = "less im " + a + " " + b;
        break; case op_equal: a = x(); b = x(); s = "equal " + a + " " + b;
        break; case op_more: a = x(); b = x(); s = "more " + a + " " + b;
        break; case op_set: a = x(); b = x(); s = "set " + a + " " + b;
        break; case op_set_ind: a = x(); b = x(); s = "set ind " + a + " " + b;
        break; case op_copy: a = x(); b = x(); s = "copy " + a + " " + b;
        break; case op_copy_ind: a = x(); b = x(); s = "copy ind " + a + " " + b;
        break; case op_add: a = x(); b = x(); s = "add " + a + " " + b;
        break; case op_add_im: a = x(); b = x(); s = "add im " + a + " " + b;
        break; case op_not: s = "not " + x();
        break; case op_neg: s = "neg " + x();
        default: s = "Unknown opcode " + opcode;
      }
      buf.append(s).append("\n");
    }
  }
  
  int x() { return g.get(pc++); }
} // Assembly Machine

static class HighLevel {
  Grid g;
  int pc, startAddress;
  Map<String, Integer> vars = new TreeMap<String, Integer>();
  
  HighLevel(Grid g, int pc) {
  this.pc = pc;
  this.g = g; startAddress = pc; }
  HighLevel(int pc) {
  this.pc = pc; startAddress = pc; g = new Grid(); }
  
  void emit(int... blubb) {
    g.set(pc, blubb);
    pc += l(blubb);
  }
  
  int newvar() {
    emit(op_jump_rel, 3);
    int addr = pc;
    emit(0);
    return addr;
  }
  
  int getvar(String name) {
    Integer bla = vars.get(name);
    if (bla == null)
      vars.put(name, bla = newvar());
    return bla;
  }
  
  // for (; i < to; i++) (to = im value)
  class ForIm {
    int var, loop, patch;
    
    ForIm(int var, int to) {
  this.var = var;
      loop = pc;
      emit(op_less_im, var, to);
      patch = patch(op_branchifnot);
    }
  
    void end() {
      emit(op_add_im, var, 1);
      emit(op_jump, loop);
      g.set(patch, pc);
    }
  }
  
  int patch(int opcode) {
    emit(opcode, 0);
    return pc-1;
  }
  
  int[] getProgram() {
    return g.getRange(startAddress, g.lastNonZero()+1);
  }
  
  void set(int x, String val) {
    if (isInteger(val))
      emit(op_set, parseInt(val), x);
    else if (isIdentifier(val))
      emit(op_copy, getvar(val), x);
    else
      fail(val);
  }
} // HighLevel

static int[] makeProgram(int startAddress) {
  String code = new Puzzler("0 10 i j for for ifless swap").code();
  HighLevel h = new HighLevel(startAddress);
  compile(code, h);
  return h.getProgram();
}

static void compile(String code, HighLevel h) {
  List stack = new ArrayList();
  Matches m = new Matches();
  for (String line : toLinesFullTrim(code)) {
    if (flexMatch("if * < * then", line)) {
      stack.add(h.new IfLess(m.get(0), m.get(1)));
    } else if (flexMatch("for * = * to *-1", line, m)) {
      // push for
      int var = h.getvar(m.get(0));
      h.set(var, m.get(1));
      stack.add(h.new ForIm(var, parseInt(m.get(2))));
    } else if (flexMatch("end", line)) {
      Object x = liftLast(stack);
      call(x, "end");
    } else if (flexMatch("swap(*, *)", line)) {
      h.swap(m.get(0), m.get(1));
    } else
      fail("bad instruction: " + line);
  }
}

static boolean isIdentifier(String s) {
  return isJavaIdentifier(s);
}
  static void set(Object o, String field, Object value) {
    if (o instanceof Class) set((Class) o, field, value);
    else try {
      Field f = set_findField(o.getClass(), field);
      smartSet(f, o, value);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
  
  static void set(Class c, String field, Object value) {
    try {
      Field f = set_findStaticField(c, field);
      smartSet(f, null, value);
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
  
  static Field set_findField(Class<?> c, String field) {
    for (Field f : c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
  }
  
  static Field set_findStaticField(Class<?> c, String field) {
    for (Field f : c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0)
        return f;
    throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
  }
static <A> A liftLast(List<A> l) {
  if (l.isEmpty()) return null;
  int i = l(l)-1;
  A a = l.get(i);
  l.remove(i);
  return a;
}
static List<String> codeTokens(List<String> tok) {
  return codeTokensOnly(tok);
}
static boolean flexMatch_debug;

static boolean flexMatch(String pat, String s) {
  return flexMatch(pat, s, null);
}

static boolean flexMatch(String pat, String s, Matches m) {
  List<String> tokpat = codeTokens(javaTok(pat));
  List<String> tokfull = joinBrackets(javaTok(s));
  List<String> tok = codeTokens(tokfull);
  BitSet bla = new BitSet();
  if (!flexMatch_impl(tokpat, 0, tok, 0, bla)) return false;
  if (m != null) {
    List<String> l = new ArrayList<String>();
    for (int i = 1; i < l(tokfull); i += 2) {
      if (bla.get(i/2)) {
        int j = i;
        while (j < l(tokfull) && bla.get(j/2)) j += 2;
        l.add(join(subList(tokfull, i, j-1)));
        i = j-2;
      }
    }
    m.m = toStringArray(l);
  }
  return true;
}

static boolean flexMatch_impl(List<String> pat, int ipat, List<String> tok, int itok, BitSet bla) {
  if (flexMatch_debug)
    print("flexMatch " + structure(subList(pat, ipat)) + " " + structure(subList(tok, itok)) + " " + structure(bla));
  if (ipat >= l(pat))
    return itok >= l(tok);
  String t = pat.get(ipat);
  if (eq(t, "*"))
    if (itok >= l(tok)) // nothing to consume - just advance in pattern
      return flexMatch_impl(pat, ipat+1, tok, itok, bla);
    else { // something to consume - try both continuing and ending to fill "*"
      bla.set(itok);
      if (flexMatch_impl(pat, ipat, tok, itok+1, bla)
        || flexMatch_impl(pat, ipat+1, tok, itok+1, bla))
        return true; // success, leave mark
      bla.clear(itok); // fail, undo marking
      return false;
    }
  if (itok >= l(tok)) {
    if (flexMatch_debug)
      print("too much pattern");
    return false;
  }
  if (neq(tok.get(itok), t)) {
    if (flexMatch_debug)
      print("mismatch");
    return false;
  }
  // ok, consume and proceed
  return flexMatch_impl(pat, ipat+1, tok, itok+1, bla);
}
static int max(int a, int b) {
  return Math.max(a, b);
}

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 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;
}

// replacement for class JavaTok
// maybe incomplete, might want to add floating point numbers
// todo also: extended multi-line strings

static List<String> javaTok(String s) {
  List<String> tok = new ArrayList<String>();
  int l = s.length();
  
  int i = 0;
  while (i < l) {
    int j = i;
    char c; String cc;
    
    // scan for whitespace
    while (j < l) {
      c = s.charAt(j);
      cc = s.substring(j, Math.min(j+2, l));
      if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
        ++j;
      else if (cc.equals("/*")) {
        do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/"));
        j = Math.min(j+2, l);
      } else if (cc.equals("//")) {
        do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0);
      } else
        break;
    }
    
    tok.add(s.substring(i, j));
    i = j;
    if (i >= l) break;
    c = s.charAt(i); // cc is not needed in rest of loop body
    cc = s.substring(i, Math.min(i+2, l));

    // 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 (cc.equals("[[")) {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (cc.equals("[=") && 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(s.substring(i, j));
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  return tok;
}

static List<String> javaTok(List<String> tok) {
  return javaTok(join(tok));
}
static void assertEquals(Object x, Object y) {
  assertEquals(null, x, y);
}

static void assertEquals(String msg, Object x, Object y) {
  if (!(x == null ? y == null : x.equals(y)))
    fail((msg != null ? msg + ": " : "") + structure(x) + " != " + structure(y));
}
static boolean eq(Object a, Object b) {
  if (a == null) return b == null;
  if (a.equals(b)) return true;
  if (a instanceof BigInteger) {
    if (b instanceof Integer) return a.equals(BigInteger.valueOf((Integer) b));
    if (b instanceof Long) return a.equals(BigInteger.valueOf((Long) b));
  }
  return false;
}
static int l(Object[] array) {
  return array == null ? 0 : array.length;
}

static int l(byte[] array) {
  return array == null ? 0 : array.length;
}

static int l(int[] array) {
  return array == null ? 0 : array.length;
}

static int l(char[] array) {
  return array == null ? 0 : array.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(String s) {
  return s == null ? 0 : s.length();
} 


static String n(long l, String name) {
  return l + " " + (l == 1 ? name : getPlural(name));
}
  // 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 m.invoke(null, args);
      } else {
        Method m = call_findMethod(o, method, args, false);
        m.setAccessible(true);
        return m.invoke(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() & 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 int parseInt(String s) {
  return empty(s) ? 0 : Integer.parseInt(s);
}
static int random(int n) {
  return new Random().nextInt(n);
}
  static RuntimeException fail() {
    throw new RuntimeException("fail");
  }
  
  static RuntimeException fail(Object msg) {
    throw new RuntimeException(String.valueOf(msg));
  }
  
  static RuntimeException fail(String msg) {
    throw new RuntimeException(unnull(msg));
  }
    
  static RuntimeException fail(String msg, Object... args) {
    throw new RuntimeException(format(msg, args));
  }
static boolean isInteger(String s) {
  return s != null && Pattern.matches("\\-?\\d+", s);
}
static <A> A oneOf(List<A> l) {
  return l.isEmpty() ? null : l.get(new Random().nextInt(l.size()));
}
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 void print() {
  print("");
}

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

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

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 List<String> toLinesFullTrim(String s) {
  List<String> l = toLines(s);
  for (ListIterator<String> i = l.listIterator(); i.hasNext(); ) {
    String line = i.next().trim();
    if (line.length() == 0)
      i.remove();
    else
      i.set(line);
  }
  return l;
}
  static <A> List<A> concatLists(List<A>... lists) {
    List<A> l = new ArrayList<A>();
    for (List<A> list : lists)
      if (list != null)
        l.addAll(list);
    return l;
  }

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

static void arraycopy(Object[] a, Object[] b) {
  int n = min(a.length, b.length);
  for (int i = 0; i < n; i++)
    b[i] = a[i];
}

static void arraycopy(Object src, int srcPos, Object dest, int destPos, int n) {
  System.arraycopy(src, srcPos, dest, destPos, n);
}
// get purpose 1: access a list/array (safer version of x.get(y))

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

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

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

static Object get(Object o, String field) {
  if (o instanceof Class) return get((Class) o, field);
  
  if (o instanceof Map)
    return ((Map) o).get(field);
    
  if (o.getClass().getName().equals("main$DynamicObject"))
    return call(get_raw(o, "fieldValues"), "get", field);
    
  return get_raw(o, field);
}

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() & 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 String indentx(String s) {
  return dropSuffix(repeat(' ', indent_default), indent(indent_default, s));
}

static int[] subArray(int[] b, int start, int end) {
  int[] x = new int[end-start];
  System.arraycopy(b, start, x, 0, end-start);
  return x;
}

static int indent_default = 2;

static String indent(int indent) {
  return repeat(' ', indent);
}

static String indent(int indent, String s) {
  return indent(repeat(' ', indent), s);
}

static String indent(String indent, String s) {
  return indent + s.replace("\n", "\n" + indent);
}

static String indent(String s) {
  return indent(indent_default, s);
}

static List<String> indent(String indent, List<String> lines) {
  List<String> l = new ArrayList<String>();
  for (String s : lines)
    l.add(indent + s);
  return l;
}

  static String unnull(String s) {
    return s == null ? "" : s;
  }
  
  static <A> List<A> unnull(List<A> l) {
    return l == null ? emptyList() : l;
  }
static boolean empty(Collection c) {
  return isEmpty(c);
}

static boolean empty(String s) {
  return isEmpty(s);
}

static boolean empty(Map map) {
  return map == null || map.isEmpty();
}
static int min(int a, int 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 String repeat(char c, int n) {
    n = max(n, 0);
    char[] chars = new char[n];
    for (int i = 0; i < n; i++)
      chars[i] = c;
    return new String(chars);
  }

  static <A> List<A> repeat(A a, int n) {
    List<A> l = new ArrayList<A>();
    for (int i = 0; i < n; i++)
      l.add(a);
    return l;
  }

static List<String> toLines(File f) {
  return toLines(loadTextFile(f));
}

  public static List<String> toLines(String s) {
    List<String> lines = new ArrayList<String>();
    if (s == null) return lines;
    int start = 0;
    while (true) {
      int i = toLines_nextLineBreak(s, start);
      if (i < 0) {
        if (s.length() > start) lines.add(s.substring(start));
        break;
      }

      lines.add(s.substring(start, i));
      if (s.charAt(i) == '\r' && i+1 < s.length() && s.charAt(i+1) == '\n')
        i += 2;
      else
        ++i;

      start = i;
    }
    return lines;
  }

  private static int toLines_nextLineBreak(String s, int start) {
    for (int i = start; i < s.length(); i++) {
      char c = s.charAt(i);
      if (c == '\r' || c == '\n')
        return i;
    }
    return -1;
  }
  public static String join(String glue, Iterable<String> strings) {
    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));
  }
  
  public static String join(Iterable<String> strings) {
    return join("", strings);
  }
  
  public static String join(String[] strings) {
    return join("", strings);
  }

static boolean neq(Object a, Object b) {
  return !eq(a, b);
}
// 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 <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 String getPlural(String s) {
  if (s.endsWith("y")) return dropSuffix("y", s) + "ies";
  return s + "s";
}
  static List<String> codeTokensOnly(List<String> tok) {
    List<String> l = new ArrayList<String>();
    for (int i = 1; i < tok.size(); i += 2)
      l.add(tok.get(i));
    return l;
  }
  static String format(String pat, Object... args) {
    return format3(pat, args);
  }

static String dropSuffix(String suffix, String s) {
  return s.endsWith(suffix) ? s.substring(0, l(s)-l(suffix)) : s;
}
static void smartSet(Field f, Object o, Object value) throws Exception {
  f.setAccessible(true);
  
  // take care of common case (long to int)
  if (f.getType() == int.class && value instanceof Long)
    value = ((Long) value).intValue();
    
  f.set(o, value);
}
static List<String> joinBrackets(List<String> tok) {
  List<String> t = new ArrayList<String>();
  Map<Integer, Integer> map = getBracketMap(tok);
  for (int i = 0; i < l(tok); i++) {
    Integer dest = map.get(i);
    if (dest != null) {
      t.add(join(subList(tok, i, dest+1)));
      i = dest;
    } else
      t.add(tok.get(i));
  }
  return t;
}
static String[] toStringArray(List<String> list) {
  return list.toArray(new String[list.size()]);
}

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

static String structure(Object o) {
  HashSet refd = new HashSet();
  return structure_2(structure_1(o, 0, new IdentityHashMap(), refd), refd);
}

// leave to false, unless unstructure() breaks
static boolean structure_allowShortening = false;

static String structure_1(Object o, int stringSizeLimit, IdentityHashMap<Object, Integer> seen, HashSet<Integer> refd) {
  if (o == null) return "null";
  
  // these are never back-referenced (for readability)
  
  if (o instanceof String)
    return quote(stringSizeLimit != 0 ? shorten((String) o, stringSizeLimit) : (String) o);
    
  if (o instanceof BigInteger)
    return "bigint(" + o + ")";
  
  if (o instanceof Double)
    return "d(" + quote(str(o)) + ")";
    
  if (o instanceof Long)
    return o + "L";
  
  if (o instanceof Integer)
    return str(o);
    
  if (o instanceof Boolean)
    return ((Boolean) o).booleanValue() ? "t" : "f";
  
  Integer ref = seen.get(o);
  if (ref != null) {
    refd.add(ref);
    return "r" + ref;
  }
      
  ref = seen.size()+1;
  seen.put(o, ref);
  String r = "m" + ref + " "; // marker

  String name = o.getClass().getName();

  StringBuilder buf = new StringBuilder();
  
  if (o instanceof HashSet)
    return r + "hashset " + structure_1(new ArrayList((Set) o), stringSizeLimit, seen, refd);

  if (o instanceof TreeSet)
    return r + "treeset " + structure_1(new ArrayList((Set) o), stringSizeLimit, seen, refd);
  
  if (o instanceof Collection) {
    for (Object x : (Collection) o) {
      if (buf.length() != 0) buf.append(", ");
      buf.append(structure_1(x, stringSizeLimit, seen, refd));
    }
    return r + "[" + buf + "]";
  }
  
  if (o instanceof Map) {
    for (Object e : ((Map) o).entrySet()) {
      if (buf.length() != 0) buf.append(", ");
      buf.append(structure_1(((Map.Entry) e).getKey(), stringSizeLimit, seen, refd));
      buf.append("=");
      buf.append(structure_1(((Map.Entry) e).getValue(), stringSizeLimit, seen, refd));
    }
    return r + (o instanceof HashMap ? "hashmap" : "") + "{" + buf + "}";
  }
  
  if (o.getClass().isArray()) {
    int n = Array.getLength(o);
    for (int i = 0; i < n; i++) {
      if (buf.length() != 0) buf.append(", ");
      buf.append(structure_1(Array.get(o, i), stringSizeLimit, seen, refd));
    }
    return r + "array{" + buf + "}";
  }

  if (o instanceof Class)
    return r + "class(" + quote(((Class) o).getName()) + ")";
    
  if (o instanceof Throwable)
    return r + "exception(" + quote(((Throwable) o).getMessage()) + ")";
    
  if (o instanceof BitSet) {
    BitSet bs = (BitSet) o;
    for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) {
      if (buf.length() != 0) buf.append(", ");
       buf.append(i);
    }
    return "bitset{" + buf + "}";
  }
    
  // Need more cases? This should cover all library classes...
  if (name.startsWith("java.") || name.startsWith("javax."))
    return r + String.valueOf(o);
    
  String shortName = o.getClass().getName().replaceAll("^main\\$", "");
  
  if (shortName.equals("Lisp")) {
    buf.append("l(" + structure_1(getOpt(o, "head"), stringSizeLimit, seen, refd));
    List args = (List) ( getOpt(o, "args"));
    if (nempty(args))
      for (int i = 0; i < l(args); i++) {
        buf.append(", ");
        Object arg = args.get(i);
        
        // sweet shortening
        if (arg != null && eq(arg.getClass().getName(), "main$Lisp") && isTrue(call(arg, "isEmpty")))
          arg = get(arg, "head");
          
        buf.append(structure_1(arg, stringSizeLimit, seen, refd));
      }
    buf.append(")");
    return r + str(buf);
  }
    
  int numFields = 0;
  String fieldName = "";
  if (shortName.equals("DynamicObject")) {
    shortName = (String) get(o, "className");
    Map<String, Object> fieldValues = (Map) get(o, "fieldValues");
    
    for (String _fieldName : fieldValues.keySet()) {
      fieldName = _fieldName;
      Object value = fieldValues.get(fieldName);
      if (value != null) {
        if (buf.length() != 0) buf.append(", ");
        buf.append(fieldName + "=" + structure_1(value, stringSizeLimit, seen, refd));
      }
      ++numFields;
   }
  } else {
    // regular class
    
    Class c = o.getClass();
    while (c != Object.class) {
      Field[] fields = c.getDeclaredFields();
      for (Field field : fields) {
        if ((field.getModifiers() & Modifier.STATIC) != 0)
          continue;
        fieldName = field.getName();
        
        // skip outer object reference
        if (fieldName.indexOf("$") >= 0) continue;
  
        Object value;
        try {
          field.setAccessible(true);
          value = field.get(o);
        } catch (Exception e) {
          value = "?";
        }
        
        // put special cases here...
    
        if (value != null) {
          if (buf.length() != 0) buf.append(", ");
          buf.append(fieldName + "=" + structure_1(value, stringSizeLimit, seen, refd));
        }
        ++numFields;
      }
      c = c.getSuperclass();
    }
  }
  
  String b = buf.toString();
  
  if (numFields == 1 && structure_allowShortening)
    b = b.replaceAll("^" + fieldName + "=", ""); // drop field name if only one
  String s = shortName;
  if (buf.length() != 0)
    s += "(" + b + ")";
  return r + s;
}

// drop unused markers
static String structure_2(String s, HashSet<Integer> refd) {
  List<String> tok = javaTok(s);
  StringBuilder out = new StringBuilder();
  for (int i = 1; i < l(tok); i += 2) {
    String t = tok.get(i);
    if (t.startsWith("m") && isInteger(t.substring(1))
      && !refd.contains(parseInt(t.substring(1))))
      continue;
    out.append(t).append(tok.get(i+1));
  }
  return str(out);
}

static boolean isJavaIdentifier(String s) {
  if (s.length() == 0 || !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 String format3(String pat, Object... args) {
    if (args.length == 0) return pat;
    
    List<String> tok = javaTokPlusPeriod(pat);
    int argidx = 0;
    for (int i = 1; i < tok.size(); i += 2)
      if (tok.get(i).equals("*"))
        tok.set(i, format3_formatArg(argidx < args.length ? args[argidx++] : "null"));
    return join(tok);
  }
  
  static String format3_formatArg(Object arg) {
    if (arg == null) return "null";
    if (arg instanceof String) {
      String s = (String) arg;
      return isIdentifier(s) || isNonNegativeInteger(s) ? s : quote(s);
    }
    if (arg instanceof Integer || arg instanceof Long) return String.valueOf(arg);
    return quote(structure(arg));
  }
  

static Map<Integer, Integer> getBracketMap(List<String> tok) {
  Map<Integer, Integer> map = new HashMap<Integer, Integer>();
  List<Integer> stack = new ArrayList<Integer>();
  for (int i = 1; i < l(tok); i+= 2) {
    if (litlist("{", "(").contains(tok.get(i)))
      stack.add(i);
    else if (litlist("}", ")").contains(tok.get(i))) {
      if (!empty(stack))
        map.put(liftLast(stack), i);
    }
  }
  return map;
}
  static String quote(String s) {
    if (s == null) return "null";
    return "\"" + s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\r", "\\r").replace("\n", "\\n") + "\"";
  }
  
  static String quote(long l) {
    return quote("" + l);
  }
  
  static String quote(char c) {
    return quote("" + c);
  }

static String shorten(String s, int max) {
  if (s == null) return "";
  return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "...";
}
static String str(Object o) {
  return String.valueOf(o);
}
static List emptyList() {
  return Collections.emptyList();
}
static <A> ArrayList<A> litlist(A... a) {
  return new ArrayList<A>(Arrays.asList(a));
}
  public static String loadTextFile(String fileName) {
    try {
      return loadTextFile(fileName, null);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
  
  public static String loadTextFile(String fileName, String defaultContents) throws IOException {
    if (!new File(fileName).exists())
      return defaultContents;

    FileInputStream fileInputStream = new FileInputStream(fileName);
    InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8");
    return loadTextFile(inputStreamReader);
  }
  
  public static String loadTextFile(File fileName) {
    try {
      return loadTextFile(fileName, null);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }

  public static String loadTextFile(File fileName, String defaultContents) throws IOException {
    try {
      return loadTextFile(fileName.getPath(), defaultContents);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
  
  public static String loadTextFile(Reader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    try {
      char[] buffer = new char[1024];
      int n;
      while (-1 != (n = reader.read(buffer)))
        builder.append(buffer, 0, n);
        
    } finally {
      reader.close();
    }
    return builder.toString();
  }
static boolean isEmpty(Collection c) {
  return c == null || c.isEmpty();
}

static boolean isEmpty(String s) {
  return s == null || s.length() == 0;
}
static boolean nempty(Collection c) {
  return !isEmpty(c);
}

static boolean nempty(String s) {
  return !isEmpty(s);
}
static boolean isTrue(Object o) {
  return booleanValue(o);
}
static Object getOpt(Object o, String field) {
  if (o instanceof String) o = getBot ((String) o);
  if (o == null) return null;
  if (o instanceof Class) return getOpt((Class) o, field);
  
  if (o.getClass().getName().equals("main$DynamicObject"))
    return call(getOpt_raw(o, "fieldValues"), "get", field);
  
  if (o instanceof Map) return ((Map) o).get(field);
  
  return getOpt_raw(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);
  }
}

static Object getOpt(Class c, String field) {
  try {
    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() & Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  return null;
}

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 Object getBot(String botID) {
  return call(getMainBot(), "getBot", botID);
}

static boolean isNonNegativeInteger(String s) {
  return s != null && Pattern.matches("\\d+", s);
}
// This is made for NL parsing.
// It's javaTok extended with "..." token, "$n" and "#n" and
// special quotes (which are converted to normal ones).

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

    // scan for non-whitespace
    if (c == '\u201C' || c == '\u201D') c = '"'; // normalize quotes
    if (c == '\'' || c == '"') {
      char opener = c;
      ++j;
      while (j < l) {
        char _c = s.charAt(j);
        if (_c == '\u201C' || _c == '\u201D') _c = '"'; // normalize quotes
        if (_c == opener) {
          ++j;
          break;
        } else if (s.charAt(j) == '\\' && j+1 < l)
          j += 2;
        else
          ++j;
      }
      if (j-1 >= i+1) {
        tok.add(opener + s.substring(i+1, j-1) + opener);
        i = j;
        continue;
      }
    } else if (Character.isJavaIdentifierStart(c))
      do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\'')); // for things like "this one's"
    else if (Character.isDigit(c))
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
    else if (cc.equals("[[")) {
      do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]"));
      j = Math.min(j+2, l);
    } else if (cc.equals("[=") && 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 if (s.substring(j, Math.min(j+3, l)).equals("..."))
      j += 3;
    else if (c == '$' || c == '#')
      do ++j; while (j < l && Character.isDigit(s.charAt(j)));
    else
      ++j;

    tok.add(s.substring(i, j));
    i = j;
  }
  
  if ((tok.size() % 2) == 0) tok.add("");
  return tok;
}

static boolean booleanValue(Object o) {
  return eq(true, o);
}

static Object mainBot;

static Object getMainBot() {
  return mainBot;
}

  static class Matches {
    String[] m;
    String get(int i) { return m[i]; }
    String unq(int i) { return unquote(m[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)); }
  }


  public static String unquote(String s) {
    if (s.startsWith("[")) {
      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.startsWith("\"") /*&& s.endsWith("\"")*/ && s.length() > 1) {
      String st = s.substring(1, s.endsWith("\"") ? s.length()-1 : s.length());
      StringBuilder sb = new StringBuilder(st.length());
  
      for (int i = 0; i < st.length(); i++) {
        char ch = st.charAt(i);
        if (ch == '\\') {
          char nextChar = (i == st.length() - 1) ? '\\' : st
                  .charAt(i + 1);
          // Octal escape?
          if (nextChar >= '0' && nextChar <= '7') {
              String code = "" + nextChar;
              i++;
              if ((i < st.length() - 1) && st.charAt(i + 1) >= '0'
                      && st.charAt(i + 1) <= '7') {
                  code += st.charAt(i + 1);
                  i++;
                  if ((i < st.length() - 1) && st.charAt(i + 1) >= '0'
                          && st.charAt(i + 1) <= '7') {
                      code += st.charAt(i + 1);
                      i++;
                  }
              }
              sb.append((char) Integer.parseInt(code, 8));
              continue;
          }
          switch (nextChar) {
          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;
          case '\'':
              ch = '\'';
              break;
          // Hex Unicode: u????
          case 'u':
              if (i >= st.length() - 5) {
                  ch = 'u';
                  break;
              }
              int code = Integer.parseInt(
                      "" + st.charAt(i + 2) + st.charAt(i + 3)
                              + st.charAt(i + 4) + st.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();      
    } else
      return s; // return original
  }

static String formatSnippetID(String id) {
  return "#" + parseSnippetID(id);
}

static String formatSnippetID(long id) {
  return "#" + id;
}

public static long parseSnippetID(String snippetID) {
  long id = Long.parseLong(shortenSnippetID(snippetID));
  if (id == 0) fail("0 is not a snippet ID");
  return id;
}

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 long parseLong(String s) {
  return Long.parseLong(s);
}
}