#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	ll N; cin >> N;
	set<ll> st;
	ll tmp = 1;
	rep(i, 64) {
		st.insert(tmp);
		tmp *= 2;
	}
	ll a = 3, b = N - 3;
	while (a <= b) {
		auto itr1 = st.find(a);
		auto itr2 = st.find(b);
		if (itr1 == st.end() && itr2 == st.end()) {
			cout << a << " " << b << endl;
			return 0;
		}
		a++; b--;
	}
	cout << -1 << endl;


    return 0;
}