CoffeeMachine/Exam

using System;

namespace P03_CoffeeMachine
{
    class P03_CoffeeMachine
    {
        static void Main(string[] args)
        {
            string drink = Console.ReadLine();
            string sugar = Console.ReadLine();
            int cups = int.Parse(Console.ReadLine());
            double price = 0.0;

            switch (drink)
            {
                case "Espresso":
                    if ("Without" == sugar)
                    {
                        price = price + 0.90 * cups;
                        price = price * 0.65;
                    }
                    else if ("Normal" == sugar)
                    {
                        price = price + 1.00 * cups;
                    }
                    else if ("Extra" == sugar)
                    {
                        price = price + 1.20 * cups;
                    }
                    if (price >= 5)
                    {
                        price = price * 0.75;
                    }
                    break;
                case "Cappuccino":
                    if ("Without" == sugar)
                    {
                        price = price + 1.00 * cups;
                        price *= 0.65;
                    }
                    else if ("Normal" == sugar)
                    {
                        price = price + 1.20 * cups;
                    }
                    else if ("Extra" == sugar)
                    {
                        price = price + 1.60 * cups;
                    }
                    break;
                case "Tea":
                    if ("Without" == sugar)
                    {
                        price = price + 0.50 * cups;
                        price *= 0.65;
                    }
                    else if ("Normal" == sugar)
                    {
                        price = price + 0.60 * cups;
                    }
                    else if ("Extra" == sugar)
                    {
                        price = price + 0.70 * cups;
                    }
                    break;
            }

            if (price > 15.0)
            {
                price = price * 0.8;
            }

            Console.WriteLine($"You bought {cups} cups of {drink} for {price:F2} lv.");
        }
    }
}