#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define fi first
#define se second
#define all(a) a.begin(),a.end()
int main(){
  vector<queue<char>> q(4);
  q[0].push('A');
  q[0].push('E');
  q[1].push('B');
  q[2].push('C');
  q[3].push('D');

  int k;
  cin >> k;

  for(int i=0; i<k; ++i){
    q[(i+1)%4].push(q[i%4].front());
    q[i%4].pop();
  }

  for(int i=0; i<4; ++i){
    while(!q[i].empty()){
      cout << q[i].front();
      q[i].pop();
    }
    cout << endl;
  }
  return 0;
}