using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        string allSpaces = "             ";

        if(string.IsNullOrEmpty(allSpaces))

        {

            Console.WriteLine("IsNullOrEmpty evaluation - {allSpaces} is empty");

        }

        else

        {

            Console.WriteLine("IsNullOrEmpty evaluation - {allSpaces} is not empty");

        }

        if(string.IsNullOrWhiteSpace(allSpaces))

        {

            Console.WriteLine("IsNullOrWhiteSpace evaluation - {allSpaces} is empty");

        }

        else

        {

            Console.WriteLine("IsNullOrWhiteSpace evaluation - {allSpaces} is not empty");

        }

    }

}