using System;

public class Program

{

    public static void Main()

    {

        new Derived2().Method();

    }

}

​

public class Base

{

    public virtual void Method()

    {

        Console.WriteLine(nameof(Base));

        // Do something

    }

}

​

public class Derived1 : Base

{

    public override void Method()

    {

        Console.WriteLine(nameof(Derived1));

        base.Method();

        // Do something

    }

}

​

public class Derived2 : Derived1

{

    public override void Method()

    {

        Console.WriteLine(nameof(Derived2));

        base.Method();

        // Do something

    }

}