/* -*- coding: utf-8 -*-
 *
 * 1764.cc:  No.1764 Square - yukicoder
 */

#include<cstdio>
#include<queue>
#include<algorithm>
 
using namespace std;

/* constant */

const int N = 4;
const char ss[N][4] = { "AE", "B", "C", "D" };

/* typedef */

typedef queue<char> qc;

/* global variables */

qc qs[N];

/* subroutines */

/* main */

int main() {
  for (int i = 0; i < N; i++)
    for (int j = 0; ss[i][j]; j++) qs[i].push(ss[i][j]);

  int k;
  scanf("%d", &k);

  for (int i = 0; i < k; i++) {
    int i0 = i % N, i1 = (i + 1) % N;
    char c = qs[i0].front(); qs[i0].pop();
    qs[i1].push(c);
  }

  for (int i = 0; i < N; i++) {
    while (! qs[i].empty())
      putchar(qs[i].front()), qs[i].pop();
    putchar('\n');
  }
  return 0;
}