/* -*- coding: utf-8 -*-
 *
 * 3765.cc:  No.3765 321-avoiding Grid - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* constant */

const int MAX_N = 500;
const int MAX_NN = MAX_N * MAX_N;

/* typedef */

/* global variables */

char s[MAX_NN + 4];

/* subroutines */

/* main */

int main() {
  int n, a, b, c;
  scanf("%d%d%d%d", &n, &a, &b, &c);
  int nn = n * n;
  
  if (a >= n) {
    fill(s, s + c, '3');
    fill(s + c, s + c + a, '1');
    fill(s + c + a, s + nn, '2');
  }
  else if (c >= n) {
    fill(s, s + a, '1');
    fill(s + a, s + a + c, '3');
    fill(s + a + c, s + nn, '2');
  }
  else { // a < n && c < n
    if (a <= c) {
      fill(s, s + a, '1');
      fill(s + a, s + c, '3');
      fill(s + n, s + n + a, '3');
    }
    else {
      fill(s, s + c, '3');
      fill(s + c, s + a, '1');
      fill(s + n, s + n + c, '1');
    }
    for (int u = 0; u < nn; u++)
      if (! s[u]) s[u] = '2';
  }

  for (int i = 0; i < nn; i++) {
    putchar(s[i]);
    if ((i + 1) % n == 0) putchar('\n');
  }
  
  return 0;
}