using System.Linq;
using System;

public class Hello
{
    static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        string[] line = Console.ReadLine().Trim().Split(' ');
        var s = Array.ConvertAll(line, int.Parse).Sum() % n;
        var t = (n - s) % n;
        var ans = (100 - t) / n + 1;
        Console.WriteLine(ans);
    }
}