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 java.util.function.*;
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 java.awt.geom.*;
import javax.imageio.*;
import java.math.*;
class main {

static Object[] repArray(Object a, int n) {
  return arrayrep(a, n);
}

static <A> A[] repArray(Class<A> type, A a, int n) {
  return arrayrep(type, a, n);
}
static Object[] arrayrep(Object a, int n) {
  Object[] array = new Object[n];
  for (int i = 0; i < n; i++) array[i] = a;
  return array;
}

static <A> A[] arrayrep(Class<A> type, A a, int n) {
  A[] array = newArray(type, n);
  for (int i = 0; i < n; i++) array[i] = a;
  return array;
}




static <A> A[] newArray(Class<A> c, int n) {
  return typedArray(c, n);
}




static <A> A[] typedArray(Class<A> c, int n) {
  return (A[]) Array.newInstance(c, n);
}



}