#include <iostream>
using namespace std;
int main(){
    int a;
    cin>>a;
    switch (a) {
        case 1:
            cout<<"a b c d e f"<<endl;
            break;
        case 2:
            cout<<"c d e f"<<endl;
            break;
        case 4:
            cout<<"e f"<<endl;
            break;
        default:
            cout<<"f"<<endl;
    }
    return 0;
}