@root what?

#include <iostream>
using namespace std;
int main() {
    int n;
    cin >> n;
    if (!(n % 5 == 0) && (n % 3 == 0 && n <= 20) || (n % 5 == 0) && !(n % 3 == 0 && n <= 20))
        cout << "YES";
    else if (n == 15)
        cout << "YES";
    else
        cout << "NO";
    return 0;
}