static int max(int a, int b) { ret Math.max(a, b); }
static int max(int a, int b, int c) { ret max(max(a, b), c); }
static long max(int a, long b) { ret Math.max((long) a, b); }
static long max(long a, long b) { ret Math.max(a, b); }
static double max(int a, double b) { ret Math.max((double) a, b); }
static float max(float a, float b) { ret Math.max(a, b); }
static double max(double a, double b) { ret Math.max(a, b); }

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

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

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

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

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