case

case

#include <bits/stdc++.h>
using namespace std;
int main(){
    int a;
    cin >> a;
    switch(a){
        case 1:
            cout <<"NO";
            break;
        case 2:
            cout <<"YES";
            break;
        case 3:
            cout <<"NO";
            break;
        case 4:
            cout <<"YES";
            break;
        case 5:
            cout <<"NO";
            break;
        case 6:
            cout <<"YES";
            break;
        case 7:
            cout <<"YES";
            break;
        default:
            cout << "Don't";
    }
    return 0;
}