using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Vehicle1");

        Console.Write("\t\t");

        Console.WriteLine("Vehicle2");

        Person o1 = new Person("Nikunj","Kalyani");

        Vehicle v1 = new Vehicle(2, "Honda", "H1", o1);

        Vehicle v2 = v1.CopyX();

        Console.Write(v1.Owner.FirstName);

        Console.Write(string.Format("({0})",v1.Wheels));

        Console.Write("\t\t\t");

        Console.Write(v2.Owner.FirstName);

        Console.WriteLine(string.Format("({0})",v2.Wheels));

        v2.Owner.FirstName = "Poonam";

        v2.Wheels = 4;

        Console.Write(v1.Owner.FirstName);

        Console.Write(string.Format("({0})",v1.Wheels));

        Console.Write("\t\t\t");

        Console.Write(v2.Owner.FirstName);

        Console.WriteLine(string.Format("({0})",v2.Wheels));

    }

}

​

public class Person{

    public string FirstName{get;set;}

    public string LastName{get;set;}

    public Person(string firstName, string lastName){

        this.FirstName = firstName;

        this.LastName = lastName;

    }

}

public class Vehicle

{

    public int Wheels{get;set;}

    public string Company{get;set;}

    public string Model{get;set;}

    public Person Owner{get;set;}

    public Vehicle(int wheels, string company, string model, Person owner)

    {

        this.Wheels = wheels;

        this.Company = company;

        this.Model = model;

        this.Owner = owner;

    }

    public Vehicle Copy(Vehicle src)

    {

        return src.MemberwiseClone() as Vehicle;

    }

}

​

public static class VehicleExtention

{

    public static Vehicle CopyX(this Vehicle src)

    {

        return src.Copy(src);

    }

}