#include<bits/stdc++.h> using namespace std; int main() { int a; cin>>a; if(a%3==0) { cout<<3; cout<<" "; } if(a%5==0) { cout<<5; cout<<" "; } if(a%7==0) { cout<<7; cout<<" "; } if(a%3!=0||a%5!=0||a%7!=0) cout<<"n"; }