class Program
{
    static void Main(string[] args)
    {
        Bottle pepsi = new Bottle();
        pepsi.DrinkType = "Pepsi";
        pepsi.CurrentDrinkAmount = 1500;

        while (pepsi.CurrentDrinkAmount > 0)
        {
            pepsi.Drink(300);
            pepsi.CheckAmount();
        }

        Console.ReadKey();
    }
}