#include <iostream>
using namespace std;
int main()
{
	int n;
	cin>>n;
	for(int i = n-1;true;i--)
	{
		int q = 1;
		int j = 1;
		while(j<i)
		{
			if(i%j==0)
			{
				q = 0;
				break;
			}
			j++;
			cout<<j<<endl;
		}
		if(q = 1)
		{
			cout<<i;
			return 0;
		}
	}
	return 0;
}