#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;
}