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

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

	int N;
	cin >> N;
	vector<int> A(1 << N);
	for (int& x : A) {
		cin >> x;
	}

	for (int m = 0; m < (1 << N); m++) {
		for (int i = 0; i < N; i++) {
			if (m & (1 << i)) continue;
			for (int j = i+1; j < N; j++) {
				if (m & (1 << j)) continue;
				if (A[m + (1 << i)] + A[m + (1 << j)] < A[m] + A[m + (1 << i) + (1 << j)]) {
					cout << m + (1 << i) << ' ' << m + (1 << j) << '\n';
					exit(0);
				}
			}
		}
	}
	cout << -1 << '\n';

	return 0;
}