#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

void print(auto a){
  cout << a;
}

void printL(auto a){
  cout << a << endl;
}

void printL(){
  cout << endl;
}

void fix(int n){
  cout << fixed << setprecision(n);
}

int main(){
  int K; cin >> K;
  queue<char> Q1, Q2, Q3, Q4;
  Q1.push('A'), Q1.push('E');
  Q2.push('B');
  Q3.push('C');
  Q4.push('D');
  for(int i = 1; i <= K; i++){
    if(i%4 == 1){
      Q2.push(Q1.front());
      Q1.pop();
    }
    if(i%4 == 2){
      Q3.push(Q2.front());
      Q2.pop();
    }
    if(i%4 == 3){
      Q4.push(Q3.front());
      Q3.pop();
    }
    if(i%4 == 0){
      Q1.push(Q4.front());
      Q4.pop();
    }
  }
  while(!Q1.empty()){
    print(Q1.front());
    Q1.pop();
  }
  printL();
  while(!Q2.empty()){
    print(Q2.front());
    Q2.pop();
  }
  printL();
  while(!Q3.empty()){
    print(Q3.front());
    Q3.pop();
  }
  printL();
  while(!Q4.empty()){
    print(Q4.front());
    Q4.pop();
  }
  printL();
}