using System;

public class Program

{

    public static void Main()

    {

        Auto auto = new Auto();

            auto.Arrancar();

            auto.Conducir();

            auto.Parar();

    }

    public interface IArranque

    {

        void Arrancar();

        void Parar();

    }

    public class Auto : IArranque

    {

        private Motor motor = new Motor();

​

        public void Arrancar()

        {

            motor.Arrancar();

            System.Console.WriteLine("Arranco Auto");

        }

        public void Conducir()

        {

            System.Console.WriteLine("Conduciendo");

        }

​

        public void Parar()

        {

            motor.Parar();

            System.Console.WriteLine("Parando Auto");

        }

    }

    public class Motor : IArranque

    {

        private Piston piston = new Piston();

​

        public void Arrancar() 

        {

            piston.Arrancar();

            System.Console.WriteLine("Arranco Motor");

        }

        public void Parar()

        {

            piston.Parar();

            System.Console.WriteLine("Parando Motor");

        }

    }

    public class Piston : IArranque

    {

        public void Arrancar() 

        {

            System.Console.WriteLine("Arranco Piston");

        } 

        public void Parar()

        {

            System.Console.WriteLine("Parando Piston");

        }

    }

}