#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main() {
    ll n;
    cin>>n;
    for (int i=1;i<min(n,100LL);i++) {
        ll b=n-i;
        if (i&(i-1)&&b&(b-1)) {
            cout<<i<<' '<<b<<endl;
            return 0;
        }
    }
    puts("-1");
    return 0;
}