#include <iostream>
using namespace std;
int main(){
	long long N;
	cin >> N;
	for (long long a = 1; a < N; a++){
		long long b = N - a;
		if (__builtin_popcountll(a) != 1 && __builtin_popcountll(b) != 1){
			cout << a << ' ' << b << endl;
			return 0;
		}
	}
	cout << -1 << endl;
}