using System;

​

public class MyObject {

​

    public double MyNumber { get; set; }

​

    public MyObject NestedObject { get; set; }

    public MyObject Clone() {

        var clone = (MyObject)MemberwiseClone();

        if(NestedObject != null) {

            clone.NestedObject = NestedObject.Clone();

        }

        return clone;

    }

}

​

public class Program

{

    public static void Main()

    {

        var myObject = new MyObject();

        myObject.MyNumber = 5;

        myObject.NestedObject = new MyObject();

        myObject.NestedObject.MyNumber = 7;

        var myClonedObject = (MyObject)myObject.Clone();

        myClonedObject.MyNumber = 10;   

        myClonedObject.NestedObject.MyNumber = 12;

        Console.WriteLine(myObject.MyNumber);

        Console.WriteLine(myObject.NestedObject.MyNumber);

        Console.WriteLine(myClonedObject.MyNumber);

        Console.WriteLine(myClonedObject.NestedObject.MyNumber);

    }

}