using System;

public class Program

{

    public static void Main()

    {

        string str = Guid.Empty.ToString();

        Console.WriteLine("str = " + str);

        Console.WriteLine("Guid.Empty = " + Guid.Empty);

        bool isGuidEmpty = str.Equals(Guid.Empty);

        Console.WriteLine("str.Equals(Guid.Empty)? = " + str.Equals(Guid.Empty));

    }

}