using System;

public class Program

{

    public static void Main()

    {

        Car myCar = new Car();

        myCar.Model="M4 Comp";

        myCar.Make="BMW";

        myCar.Color="gray";

        myCar.Year=2022;

        Console.WriteLine("{0:C}", DetermineMarketValue(myCar));

    }

    private static double DetermineMarketValue(Car car){

        double carValue = 40.0*car.Year;

        return carValue;

    }

}

class Car

{

    public string Make{get;set;}

    public string Model{get;set;}

    public string Color{get;set;}

    public int Year{get;set;}

    public double  DetermineMakerValue(){

        double carValue = 40.0*this.Year;

        return carValue;

    }

}