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 { static List sortedByMapElement(Collection c, final Object key) { List l = new ArrayList(c); sort(l, new Comparator() { public int compare(Map a, Map b) { return cmp(a.get(key), b.get(key)); } }); return l; } static void sort(T[] a, Comparator c) { Arrays.sort(a, c); } static void sort(T[] a) { Arrays.sort(a); } static void sort(List a, Comparator c) { Collections.sort(a, c); } static void sort(List a) { Collections.sort(a); } static int cmp(Number a, Number b) { return a == null ? b == null ? 0 : -1 : cmp(a.doubleValue(), b.doubleValue()); } static int cmp(double a, double b) { return a < b ? -1 : a == b ? 0 : 1; } static int cmp(Object a, Object b) { if (a == null) return b == null ? 0 : -1; if (b == null) return 1; return ((Comparable) a).compareTo(b); } }