#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define llong long long

bool notP2(llong val) {
    while(val > 1) {
        if(val % 2 == 1) return true; 
        val /= 2;
    }
    return false;
}

int main() {
    llong n;
    cin >> n;
    if(n <= 5) {
        cout << -1 << "\n";
    } else if(notP2(n-3)) {
        cout << 3 << " " << n-3 << "\n";
    } else if(notP2(n-5)) {
        cout << 5 << " " << n-5 << "\n";
    } else {
        cout << -1 << "\n";
    }
}