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

int main() {
  long N;
  cin >> N;
  for (long i = 1; i < N; i++)
    if (__builtin_popcountl(i) != 1 && __builtin_popcountl(N - i) != 1)
      return cout << i << " " << N - i << "\n", 0;
  cout << -1 << "\n";
}