#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  ll N;
  cin >> N;
  set<ll> s;
  s.insert(1);
  ll t = 2;

  while (t <= N) {
    s.insert(t);
    t *= 2;
  }
  for (int i = 3; i < N; i++) {
    if (s.count(i) == 0) {
      if (s.count(N - i) == 0) {
        cout << i << " " << N - i << "\n";
        return 0;
      }
    }
  }
  cout << "-1" << "\n";
  return 0;
}