using System;

public class Program

{

    public static void Main()

    {

                int[] numbers = { 3, 9, 24, 8, 15, 7, 62, 44, 31 };

            int k=numbers.Length; 

        // why if I wrote numbers.Length - 1 it doesnt work // 

            for (int index = 0; index < numbers.Length; index++)

            {

                Console.WriteLine(numbers[index]);

            }

          Console.Write("\n\n");

​

            for (int i = k - 1 ;i >= 0; i--)

             {

             Console.WriteLine("{0}",numbers[i]);

              }

        Console.Write("\n\n");

​

                int j,sum = 0;

            for (j = 0; j < k; j++)

            {

                sum = sum + numbers[j];

            }

            Console.Write ("The sume is {0}\n", sum);

            }

}