int main()
{
	int n;
	cin>>n;
	if(n%3==0&&n%5!=0&&n%7!=0)		//??????????????
		cout<<3;
	if(n%5==0&&n%3!=0&&n%7!=0)
		cout<<5;
	if(n%7==0&&n%3!=0&&n%5!=0)
		cout<<7;
	if(n%3!=0&&n%5!=0&&n%7!=0)
		cout<<"n";
	if(n%3==0&&n%5==0&&n%7!=0)
		cout<<3<<" "<<5;
	if(n%3==0&&n%5!=0&&n%7==0)
		cout<<3<<" "<<7;
	if(n%3!=0&&n%5==0&&n%7==0)
		cout<<5<<" "<<7;
	if(n%3==0&&n%5==0&&n%7==0)
		cout<<3<<" "<<5<<" "<<7;
	return 0;
}