#line 1 "main.cpp"
#include <bits/stdc++.h>
#include <atcoder/all>
// #include "library/templates/template.cpp"
using namespace atcoder;
using namespace std;
using ll = long long int;
using ull = unsigned long long int;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

void solve(int K)
{
    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');
    for (int i = 0; i < K; i++)
    {
        char x = qs[i % 4].front();
        qs[i % 4].pop();
        qs[(i + 1) % 4].push(x);
    }
    for (int i = 0; i < 4; i++)
    {
        while (!qs[i].empty())
        {
            cout << qs[i].front();
            qs[i].pop();
        }
        cout << endl;
    }
}

int main()
{
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);
    std::cout.tie(nullptr);
    int K;
    std::cin >> K;
    solve(K);
    return 0;
}