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 byte[] intArrayToBytes_littleEndian_flexLength(int[] a, int n) {
  byte[] b = new byte[n];
  int full = n/4;
  for (int i = 0; i < full; i++)
    intToBytes_inArray_littleEndian(a[i], b, i*4);
  if ((n & 3) != 0)
    intToBytes_inArray_littleEndian_partial(a[full], b, full*4);
  return b;
}
static void intToBytes_inArray_littleEndian(int i, byte[] array, int idx) {
  array[idx] = (byte) i;
  array[idx+1] = (byte) (i >>> 8);
  array[idx+2] = (byte) (i >>> 16);
  array[idx+3] = (byte) (i >>> 24);
}

static void intToBytes_inArray_littleEndian_partial(int i, byte[] array, int idx) {
  if (idx < array.length) array[idx] = (byte) i;
  if (idx+1 < array.length) array[idx+1] = (byte) (i >>> 8);
  if (idx+2 < array.length) array[idx+2] = (byte) (i >>> 16);
  if (idx+3 < array.length) array[idx+3] = (byte) (i >>> 24);
}


}