using System;

public class Program

{

    public static void Main()

    {       

        string x = "";

        string y = " ";

        Console.WriteLine(@"x = """);

        Console.WriteLine($"string.IsNullOrWhiteSpace(x): {string.IsNullOrWhiteSpace(x)}");

        Console.WriteLine($"string.IsNullOrWhiteSpace(y): {string.IsNullOrWhiteSpace(y)}");

        Console.WriteLine($"string.IsNullOrEmpty(x): {string.IsNullOrEmpty(x)}");

        Console.WriteLine($"string.IsNullOrEmpty(y): {string.IsNullOrEmpty(y)}");

    }

}