using System;

​

public class Program

{

    public static void Main()

    {

        int[] arr = new int[6];

        int smallest;

        int largest;

        for (int i = 0; i < 6; i++)

        {

            Console.Write("int-" + (i + 1) + ": ");

            arr[i] = Convert.ToInt16(Console.ReadLine());

        }

​

        largest = arr[0];

        smallest = arr[0];

        for (int i = 1; i < 6; i++)

        {

            if (arr[i] < smallest)

            {

                smallest = arr[i];

            }

            else if (arr[i] > largest)

            {

                largest = arr[i];

            }

        }

        Console.WriteLine(largest-smallest);

    }

}