public class HotDrinksMachine
{
    public static void Main(string[] args)
    {
        string userInput = Console.ReadLine();
        switch(userInput)
        {
            case "coffee":
                coffeeMaker = new CoffeeMaker();
                coffeeMaker.PrepareRecipe();
                break;
            case "tea":
                teaMaker = new TeaMaker();
                teaMaker.PrepareRecipe();
                break;
            default:
                Console.WriteLine("wrong input!");
                break;
        }
}