using System;

public class Program

{

    public static void Main()

    {

        int[] array = {1,2,3,4,5,6};

        int position;

        position = array.Length -1;

        int i = 5;

​

        while (i >= 0)

        {

            Console.WriteLine( array.Length[position] );

            i--;

        }

    }

}

​