#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic pop
using namespace std;
using namespace atcoder;
#define rep(i,n)for (int i = 0; i < int(n); ++i)
#define rrep(i,n)for (int i = int(n)-1; i >= 0; --i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<class T> void chmax(T& a, const T& b) { a = max(a, b); }
template<class T> void chmin(T& a, const T& b) { a = min(a, b); }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  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;
  rep(kk, k) {
    int i = kk % 4;
    int j = (i + 1) % 4;
    q[j].push(q[i].front());
    q[i].pop();
  }
  rep(i, 4) {
    while(q[i].size()) cout << q[i].front(), q[i].pop();
    cout << '\n';
  }
}