//Normal

#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

void print(auto a){
  cout << a;
}

void prints(auto a){
  cout << a << " ";
}

void prints(){
  cout << " ";
}

void printl(auto a){
  cout << a << endl;
}

void printl(){
  cout << endl;
}

void fix(int n){
  cout << fixed << setprecision(n);
}

int siz(string s){
  return (int)s.size();
}

int main(){
  ll N; cin >> N;
  map<ll, int> mp;

  ll i = 1;
  while(i < 1e18){
    mp[i]++;

    i *= 2;
  }

  for(ll X = N-3; X > 0; X--){
    ll Y = N-X;

    if(mp[X] == 0 and mp[Y] == 0){
      if(X > Y) swap(X, Y);
      cout << X << " " << Y << endl;

      return 0;
    }
  }

  printl(-1);

  return 0;
}