#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using ll=long long;
using Graph=vector<vector<int>>;
#define INF 1000000000000000000
#define MOD 998244353
#define MAX 1000000

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');
  for(int i=0;i<K;i++){
    int x=q[i%4].front();
    q[i%4].pop();
    q[(i+1)%4].push(x);
  }
  for(int i=0;i<4;i++){
    while(!q[i].empty()){
      cout<<q[i].front();
      q[i].pop();
    }
    cout<<'\n';
  }
}