using System;

public class Test
{
	class Car
	{
		public string Chasis {get;set;}
		public string Wheels {get;set;}
		public string Seats  {get;set;}
	}

	interface ICarBuilder
	{
		 void BuildChasis();
		 void AddWheels();
		 void AddSeats();
		 Car GetBuiltCar();
	}

	interface IDirector
	{
		 void BuildCar(ICarBuilder builder);

	}

	class ToyotaBuilder : ICarBuilder
	{
		private Car corolla = new Car();
		public void BuildChasis()
		{
			corolla.Chasis = "Toyota Corolla";
		}

	  public void AddWheels()
	  {
	  	corolla.Wheels = "Alloy";

	  }
		 public void AddSeats()
		 {
		 	corolla.Seats = "Corduroy";
		 }
		public Car GetBuiltCar()
		 { return corolla; }

	}

	class Toyota : IDirector
	{
		public void BuildCar(ICarBuilder cb)
		{
			cb.BuildChasis();
			cb.AddWheels();
			cb.AddSeats();
		}
	}

	public static void Main()
	{
		Console.WriteLine("Hello World");

		var tb = new ToyotaBuilder();
		var td = new Toyota();

		td.BuildCar(tb);
		var car = tb.GetBuiltCar();

		Console.WriteLine("Built {0} with {1} wheels and {2} seats!"
			, car.Chasis, car.Wheels, car.Seats);
	}
}