using System;

            class Car

        {

            public string model;

            public string model2;

            public string model3;

            public string color;

            public int year;

            public Car()

            {

                model = "Mustang";

            }

            public Car(string modelName)

            {

                model2 = modelName;

            }

            public Car(string modelName, string modelColor, int modelYear)

            {

                model3 = modelName;

                color = modelColor;

                year = modelYear;

            }

​

public class Program

{

    public static void Main()

    {

        Car Ford = new Car();

        Console.WriteLine(Ford.model);

        Car Ford2 = new Car("Mustang");

        Console.WriteLine(Ford2.model2);

        Car Ford3 = new Car("Mustang", "Red", 1969);

        Console.WriteLine(Ford3.color + " " + Ford3.year + " " + Ford3.model3);

    }

}

​