#include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     vector<int> a(n);     int index1 = 0;     int index2 = 0;     for (int i = 0; i < n; i++) {       cin >> a[i];       if (a[i] == 1)         index1 = i + 1;       else if (a[i] == n)         index2 = i + 1;     }     int ans = max(max(max(index2 - 1, n - index2), index1 - 1), n - index1);     cout << ans;     return 0;   }   