using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ConsoleApp1

{

    public class Car

    {

        public Wheel leftFontWheel = new Wheel(1999);

        public Wheel rightFontWheel = new Wheel(2000);

        public Wheel leftBackWheel = new Wheel(2001);

        public Wheel rightBackWheel = new Wheel(2002);

​

    public void forWard() {

            Console.WriteLine("----- Car forward -----");

            leftBackWheel.rotate(true);

            rightBackWheel.rotate(true);

        }

        public void backWard() {   

​

        }

        public void turnLeft() {

            Console.WriteLine("----- Car turn left -----");

            leftBackWheel.Stop();

            rightBackWheel.rotate(true);

​

        }

    public void turnRight() {

            Console.WriteLine("----- Car turn right -----");

            leftBackWheel.rotate(true);

            rightBackWheel.Stop();

        }

​

    }

    public class Sportcar:Car{

        public string color;

        public Sportcar(string colorcar) {

            color = colorcar;

        }

        public void operation1(){

        }

        public void operation2(){

        }

    }

    public class Pickup:Car{

        public string color;

        public Pickup(string colorcar) {

            color = colorcar;

        }

        public void operation1(){

        }

        public void operation2(){

        }

    }

​

   public class Wheel

    {

        private int year;

        public Wheel(int year)

        {

            this.year = year;

        }

        public void rotate(bool isTrue)

        {

            if (isTrue)

            {

                Console.WriteLine("Wheel rotate foward");

            }

            else

            {

                Console.WriteLine("Wheel rotate backward");

            }

        }

        public void getYear()

        {

            Console.WriteLine(this.year);

        }

        public void Stop()

        {

            Console.WriteLine("wheel stop");

        }

    }

    class Program {

        public static void Main(String[] args)

        {

           Pickup p = new Pickup("red");

            p.forWard();

            p.turnRight();

            p.turnLeft();

            Console.ReadLine();

        }

    }

}