#include <iostream>

using namespace std;

int main()
{
    int x2, x3, n, n1;
    cin>>n;
    x3 = n / 3;
    n = n % 3;
    if ((x3 == 1) && (n = 1))
    {
        cout<<2<<" "<<2;
    }


    if (n == 0)
        cout<<3<<" "<<x3<<endl;
    else
        if ((n % 2) == 0)
            cout<<3<<" "<<x3<<" "<<n/2<<endl;
        else
            cout<<2<<" "<<2<<" "<<3<<" "<<(x3 - 1)<<endl;
    return 0;
}