using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    static int[] LList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => int.Parse(ReadLine())).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        if (n == 1)
        {
            WriteLine(101);
            return;
        }
        var sum = NList.Sum();
        var ans = 0;
        for (var i = 0; i <= 100; ++i) if ((sum + i) % n == 0) ++ans;
        WriteLine(ans);
    }
}