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

#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)



int main(int argc, char const *argv[])
{
	ll n; cin >> n;
	for (ll i = 0; i < n; ++i)
	{
		if ((i & (i - 1)) == 0) continue;
		ll j = n - i;
		if ((j & (j - 1)) == 0) continue;

		printf("%lld %lld \n", i, j);
		return 0;
	}
	printf("-1\n");
	return 0;
}