#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <list>
#include <set>
#include <map>
#include <numeric>
#include <regex>
#include <tuple>
#include <iomanip>
#include <cmath>
using namespace std;

typedef long long ll;
typedef pair<int, int> P;
#define MOD 1000000007 // 10^9 + 7
#define INF 1000000000 // 10^9
#define LLINF 1LL<<60


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

	ll N; cin >> N;
	if (N <= 5) cout << -1 << endl;
	else if(N == 7) cout << -1 << endl;
	else {
		ll K = N - 3;
		while (K % 2 == 0) K /= 2;
		if (K != 1) cout << 3 << " " << N - 3 << endl;
		else {
			cout << 5 << " " << N - 5 << endl;
		}
	}

	return 0;
}