using System;

public class A 

{

    public static void F()

    {

        Console.WriteLine("A.F");

    }

}

class B : A 

{

    public void G()

    {

    Console.WriteLine("B.G");

    }

}

class Test 

{

  static void Main()

  {

     B b = new B();

     b.F(); //Inherited from A

     b.G(); //Introduced in B

     Console.ReadKey();

  }

}

​