#include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int sum = 0;     int d;     for (int i = 0; i < n; i++) {       cin >> d;       sum += d;     }     int count = 5;     for (int i = 1; i <= 5; i++) {       if ((sum + i) % (n + 1) == 1) {         count--;       }     }     cout << count << endl;   }   