using System;

public class Diploma

{

    public void CLang()

    {

        Console.WriteLine("Shaishta mam");

    }

}

public class Btech

{

    public void Java()

    {

        Console.WriteLine("Chawala mutyala Rao");

    }

}

public class Mtech

{

    public void MachineLearning()

    {

        Console.WriteLine("Abdullah Sir");

    }

}

public class Main class()

{

    public static void Main()

    {

        Diploma d=new Diploma();

        d.CLang();

        Btech b=new Btech();

        b.Java();

    }

}