using System;

public class Program

{

    public static void Main()

    {

        int[] itens = new int[] {2,5,41,1};

        Console.WriteLine(difrenca(itens));

    }

    public static int difrenca(int[] itens)

    {

​

        Array.Sort(itens);

        return itens[itens.Length - 1] - itens[0];

    }

}