#include<iostream>
#include<cmath>
using namespace std;
int main() {
	int n;
	cin >> n;
	int N = pow(2, n);
	int s[129] = { 0 };
	for (int i = 1; i <= N; i++)cin >> s[i];
	int zuo = 0;
	int you = 0;
	int l = 0;
	int r = 0;
	for (int i = 1; i <= N / 2; i++) {
		if (zuo < s[i]) {
			zuo = s[i];
			l = i;
		}
	}	
	for (int i = N/2+1; i <= N ; i++) {
		if (you < s[i]) {
			you = s[i];
			r = i;
		}
	}
	if (zuo > you)cout << r;
	else cout << l;
	return 0;
}