#include <iostream>
#include <iomanip>
#include <string>
#include <vector>
#include <queue>
#include <algorithm>
#include <utility>
#include <cmath>
#include <map>
#include <set>
#include <stack>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cassert>
#include <cctype>
#include <complex>
using namespace std;

#define INF_LL (ll)1e18
#define INF (int)1e9
#define REP(i, n) for(int i = 0;i < (n);i++)
#define FOR(i, a, b) for(int i = (a);i < (b);i++)
#define all(x) x.begin(),x.end()
using ll = long long;
using PII = pair<int, int>;

const double eps = 1e-10;

template<typename A, typename B>inline void chmin(A &a, B b){if(a > b) a = b;}
template<typename A, typename B>inline void chmax(A &a, B b){if(a < b) a = b;}

int main(void){
	cin.tie(0);
	ios::sync_with_stdio(false);
	ll N;
	cin >> N;
	if(N < 6){
		cout << -1 << endl;
		return 0;
	}
	FOR(i, 3, N/2+1){
		ll n = i;
		while(n%2 == 0) n/=2;
		if(n == 1) continue;
		n = N-i;
		while(n%2 == 0) n/=2;
		if(n == 1) continue;
		cout << i << " " << N-i << endl;
		return 0;
	}
	cout << -1 << endl;
}