#include <bits/stdc++.h>
using namespace std;

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    long long n;
    cin >> n;

    vector<long long> Two;
    long long t = 2;
    while(t <= 1e18){
        Two.push_back(t);
        t *= 2;
    }

    for(long long i = 2; i <= n / 2; i++){
        int i1 = lower_bound(Two.begin(), Two.end(), i) - Two.begin();
        int i2 = lower_bound(Two.begin(), Two.end(), n - i) - Two.begin();

        if(Two[i1] == i) continue;
        if(Two[i2] == n - i) continue;

        cout << i << ' ' << n - i << endl;
        return 0;
    }

    cout << -1 << endl;

    return 0;
}