#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std;

int n;

int main(){
  cin>>n;
  if(n==1 || n==2 || n==3 || n==4 || n==5 || n==7){
    cout<<-1<<endl;
    return 0;
  }
  if((n-3)&(n-4)){
    cout<<3<<" "<<n-3<<endl;
  }else{
    cout<<5<<" "<<n-5<<endl;
  }
  return 0;
}