#include <iostream>
using namespace std;
int main() {
  int k;cin >> k;k %= 20;
  string s = "EABCD";
  int a = k / 4 * 4 % 5, b = k % 4, c = 0;
  for (; c < 5; ++c)
    if (c == b)
      cout << s[(a + c + 1) % 5] << s[(a + c++) % 5] << '\n';
    else
      cout << s[(a + c) % 5] << '\n';
}