#include <iostream>
#include <cstdint>

using namespace std;

constexpr uint16_t pop_count(uint64_t a) noexcept
{
	uint16_t ans = UINT16_C(0);
	for (; a != UINT64_C(0); a >>= UINT64_C(1))
		if (a & UINT64_C(1)) ++ans;

	return ans;
}

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

	uint64_t N, i;
	cin >> N;

	for (i = 1; i != N; ++i)
		if (pop_count(i) != 1 && pop_count(N - i) != 1)
		{
			cout << i << ' ' << N - i << '\n';
			return 0;
		}

	cout << "-1\n";
	return 0;
}