//スマホコーディング
#include<iostream>
using namespace std;
typedef long long ll;

int bitcnt(ll a){
int ret = 0;
for(; a!=0; a &= a-1)ret++;
return ret;
}

int main(){
ll n;
cin>>n;
if(n <= 5){
cout<<-1<<endl;
return 0;
}

ll a,b;
for(a = 3; a < n; a++){
b = n - a;
if(bitcnt(a)!=1 && bitcnt(b)!=1)break;
}

if(a == n)cout<<-1<<endl;
else cout<<a<<" "<<b<<endl;

return 0;
}