/* -*- coding: utf-8 -*-
 *
 * 638.cc: No.638 Sum of "not power of 2" - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

/* typedef */

typedef long long ll;

/* global variables */

/* subroutines */

inline bool is_pow2(ll k) {
  while ((k & 1) == 0) k >>= 1;
  return (k == 1);
}

/* main */

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

  for (ll a = 3, b = n - a; a <= b; a++, b--)
    if (! is_pow2(a) && ! is_pow2(b)) {
      printf("%lld %lld\n", a, b);
      return 0;
    }

  puts("-1");
  return 0;
}