#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <queue>
#include <map>
#include <functional>
#include <cmath>
#include <tuple>
using namespace std;
#pragma warning (disable: 4996)

long long n;

bool ispower(long long H) {
	while (H >= 2) {
		if (H % 2 == 1) return false;
		H /= 2;
	}
	return true;
}

int main() {
	cin >> n;
	for (long long i = 1; i <= n - 1; i++) {
		if (ispower(i) == false && ispower(n - i) == false) {
			cout << i << " " << n - i << endl;
			return 0;
		}
	}
	cout << "-1" << endl;
	return 0;
}