#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;

int main() {
    int64_t n;
    cin >> n;

    for (int i = 3; i < 100000; i++) {
        int64_t j = n - i;
        if (j < i) break;
        if (i & (i - 1)) {
            if (j & (j - 1)) {
                cout << i << ' ' << j << endl;
                quick_exit(0);
            }
        }
    }

    cout << -1 << endl;

    return 0;
}