#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); ++i)

int main() {
  int k;
  cin >> k;
  vector<queue<char>> q(4);
  q[0].push('A'), q[1].push('B'), q[2].push('C'), q[3].push('D'), q[0].push('E');
  rep(i, k) {
    int t = q[i % 4].front();
    q[i % 4].pop();
    q[(i + 1) % 4].push(t);
  }
  rep(i, 4) {
    while (!q[i].empty()) {
      cout << q[i].front();
      q[i].pop();
    }
    cout << endl;
  }
  return 0;
}