#include<iostream>
using namespace std;       
int main()
{
    int a;
    cin>>a;
    if(a%3==0) printf("3 ");
    if(a%5==0) printf("5 ");
    if(a%7==0) printf("7");
    if(a%3!=0&&a%5!=0&&a%7!=0) printf("n");
    printf("\n");
    return 0;
}