#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int a[n + 1];
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
  }
  int c = 0;
  while (true) {
    for (int i = 1; i <= n; ++i) {
      if (a[i] - c < 1) {
        cout << i << endl;
        return 0;
      }
      c++;
    }
  }
}
