#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using Graph = vector<vector<int> >;

#define rep(i, a, b) for(int i = a; i < b; i++)
#define rrep(i, a, b) for(int i = a; i >= b; i--)
#define fore(i, a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()

const int INFI = 1 << 29;
const ll INFL = 1LL << 59;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    deque<char> dq0, dq1, dq2, dq3;
    dq0.push_back('A');
    dq0.push_back('E');
    dq1.push_back('B');
    dq2.push_back('C');
    dq3.push_back('D');
    vector<deque<char> > vec = {dq0, dq1, dq2, dq3};

    int k; cin >> k;
    rep(i, 0, k) {
        int tmp = i % 4, tmp2 = (i + 1) % 4;
        char c = vec[tmp].front();
        vec[tmp].pop_front();
        vec[tmp2].push_back(c);
    }

    rep(i, 0, 4) {
        for (auto j : vec[i]) cout << j;
        cout << endl;
    }
}