using System;

public class Program

{

    interface A

    {

    }

    interface B

    {

        void GetStatus();

    }

    class RSM : A, B

    {

        void B.GetStatus()

        {

            Console.WriteLine("Works");

        }

    }

    static B GiveAGetB(A a)

    {

        return a as B;

    }

    public static void Main()

    {

        var rsm = new RSM();

        B b = GiveAGetB(rsm);

        b.GetStatus();

    }

}