#include<bits/stdc++.h>
#define REP(i,n) for(int i=0,i##_len=int(n);i<i##_len;++i)
#define rep(i,a,b) for(int i=int(a);i<int(b);++i)
#define All(x) (x).begin(),(x).end()
#define rAll(x) (x).rbegin(),(x).rend()
using namespace std;
using ll = long long;

int main(){
    std::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(i,k)
    {
        std::queue<char>& from = q[i%4];
        std::queue<char>& to = q[(i+1)%4];
        char c = from.front();from.pop();
        to.push(c);
    }
    REP(i,4)
    {
        while(q[i].size())
        {
            cout << q[i].front();
            q[i].pop();
        }
        cout<<endl;
    }
}