#include <iostream>
using namespace std;

int main() {
    int num;
    cin >> num;
    
    bool d3 = (num % 3 == 0);
    bool d5 = (num % 5 == 0);
    bool d7 = (num % 7 == 0);
    
    int count = d3 + d5 + d7;
    
    if (count == 3) {
        cout << "3\n5\n7";
    } else if (count == 2) {
        if (d3 && d5) cout << "3\n5";
        else if (d3 && d7) cout << "3\n7";
        else cout << "5\n7";
    } else if (count == 1) {
        if (d3) cout << "3";
        else if (d5) cout << "5";
        else cout << "7";
    } else {
        cout << "n";
    }
    
    return 0;
}