using System;

using System.Text;

​

public class TechExercise

{

    static void Main(string[] args)

    {

        Console.WriteLine(sumArray(new int[] { 8, 2, 17, 3, 4, 1}));

        Console.WriteLine(reverseString("exercise"));

    }

    private static int sumArray(int[] arr)

    {

        return 0;

    }

​

    private static string reverseString(string originalString)

    {           

        return ""; 

    }    

}