using System;

public class Program

{

    public static void Main()

    {

        var a = new Derived("XYZ");

        var b = a.Clone();

        Console.WriteLine(b.Name);

        Console.WriteLine(b.GetType().ToString());

    }

   public abstract class BaseClass

   {

       public abstract BaseClass Clone();

   }

   public class Derived : BaseClass

   {

       public Derived(string name)

       {

           Name = name;

       }

       public string Name {get;}

        public override Derived Clone()

        {

          return new Derived(this.Name);

        }

   }

}