#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(n); i++)



int main(){
    string S[4] = {"AE","B","C","D"};
    int K; cin >> K;
    rep(i,K){
        int p0 = i%4;
        int p1 = (i+1)%4;
        reverse(S[p0].begin(), S[p0].end());
        S[p1].push_back(S[p0].back());
        S[p0].pop_back();
        reverse(S[p0].begin(), S[p0].end());
    }
    rep(t,4) cout << S[t] << endl;
    return 0;
}




struct ios_do_not_sync {
    ios_do_not_sync() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} ios_do_not_sync_instance;