#include <bits/stdc++.h>
using namespace std;
int main() {
	cin.tie(0)->sync_with_stdio(0);
	int n;
	cin >> n;
	vector<int> a(1 << n);
	for (int &x : a) {
		cin >> x;
	}
	for (int S = 0; S < (1 << n); S++) {
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < i; j++) {
				if (!(S >> i & 1) && !(S >> j & 1)) {
					if (a[S | (1 << i)] + a[S | (1 << j)] < a[S] + a[S | (1 << i) | (1 << j)]) {
						cout << (S | (1 << i)) << " " << (S | (1 << j)) << "\n";
						return 0;
					}
				}
			}
		}
	}
	cout << -1 << "\n";
	return 0;
}