class Program
{
    static void Main(string[] args)
    {
        int total = int.Parse(Console.ReadLine()!);

        if (total == 1)
        {
            Console.WriteLine(101);
            return;
        }

        string[] input = Console.ReadLine()!.Split(' ');
        int sum = 0;

        for (int i = 0; i < input.Length; i++)
        {
            sum += int.Parse(input[i]);
        }

        int count = 0;
        for (int i = 0; i <= 100; i++)
        {
            if ((sum + i) % total == 0)
            {
                count++;
            }
        }
        Console.WriteLine(count);
    }
}