using System;

public class Program

{

    public static void Main()                   // number 4 

    {

        int [] a = new int[5]{67,23,15,68,99};

        int [] rvrs = new int[a.Length];

        rvrs = Reverse(a,rvrs);

        for (int j = 0; j< rvrs.Length; j++)

        {

            Console.Write(rvrs[j]+",");

        }

    }

    public static int[] Reverse(int[] arr, int[] rvrs)

    {

        for (int i = 0; i<arr.Length; i++)

        {

            rvrs[arr.Length - i - 1] = arr[i];

        }

        return rvrs;

    }

}