#include <bits/stdc++.h>
#define FOR(i, n, m) for(long long i = (n); i < (long long)(m); i++)
#define REP(i, n) FOR(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define pb push_back
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<ll, ll>;
constexpr ll inf = 1000000000;
constexpr ll mod = 998244353;
constexpr ld eps = 1e-6;

template <typename T1, typename T2>
ostream &operator<<(ostream &os, pair<T1, T2> p) {
    os << to_string(p.first) << " " << to_string(p.second);
    return os;
}
template <typename T> ostream &operator<<(ostream &os, vector<T> &v) {
    REP(i, v.size()) {
        if(i)
            os << " ";
        os << v[i];
    }
    return os;
}

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

    vector<queue<char>> qs(4);
    qs[0].push('A');
    qs[0].push('E');
    qs[1].push('B');
    qs[2].push('C');
    qs[3].push('D');

    int k;
    cin >> k;

    REP(i, k) {
        char c = qs[i % 4].front();
        qs[i % 4].pop();
        qs[(i + 1) % 4].push(c);
    }

    REP(i, 4) {
        while(not qs[i].empty()) {
            cout << qs[i].front();
            qs[i].pop();
        }
        cout << endl;
    }
    return 0;
}