using System;

​

public class Car{

    public string Move(){

        return "Зараз машина їде";

    }

​

    public string Stop(){

        return "Зараз машина стоїть";

    }

}

​

public class Truck : Car{

    public string CarryCargo(){

        return "Вантажівка везе вантаж";

    }

}

​

public class FireTruck : Car{

    public string QuenchTheFire(){

        return "Пожежна машина гасить пожежу";

    }

}

public class Program{

    public static void Main(){

        var Car = new Car();

        var Truck = new Truck();

        var FireTruck = new FireTruck();

​

        Console.WriteLine(Car.Move());

        Console.WriteLine(Car.Stop());

        Console.WriteLine(Truck.Move());

        Console.WriteLine(Truck.Stop());

        Console.WriteLine(Truck.CarryCargo());

​

        Console.WriteLine(FireTruck.Move());

        Console.WriteLine(FireTruck.Stop());

        Console.WriteLine(FireTruck.QuenchTheFire());

    }

}