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

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<endl
#define p2(s, t) cout << (s) << " " << (t) << endl
#define br() p("")
#define pn(s) cout << (#s) << " " << (s) << endl

bool is_power_of_two(ll n){
    return !(n & (n-1));
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    ll N;
    cin >> N;

    FOR(a, 1, 100000){
        if(is_power_of_two(a)) continue;

        ll b = N - a;
        if(b<=0) break;
        if(!is_power_of_two(b)){
            // found
            p2(a, b);
            return 0;
        }
    }
    p(-1);
    return 0;
}