#include<bits/stdc++.h> using namespace std; int main(){ int x; cin>>x; if(x%105==0) cout<<"3 5 7"; else if(x%15==0) cout<<"3 5"; else if(x%21==0) cout<<"3 7"; else if(x%35==0) cout<<"5 7"; else if(x%3==0) cout<<"3"; else if(x%5==0) cout<<"5"; else if(x%7==0) cout<<"7"; else cout<<'n'; return 0; }