Pizza

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IFelse
{
    class Program
    {
        static void Main(string[] args)
        {
            string pizza = Console.ReadLine();
            string desert = Console.ReadLine();
            int brpizza = int.Parse(Console.ReadLine());
            double money = 0.0;
           /* if (pizza == "Small")
            {
                money = 9.98 * brpizza;
            }
            else if (pizza == "Medium")
            {
                money = 18.99 * brpizza;
            }
            else if (pizza == "Large")
            {
                money = 25.98 * brpizza;
            }
            else if (pizza == "ExtraLarge")
            {
                money = 35.99 * brpizza;
            }*/

            switch (pizza)
            {
                case "Small":
                    money = 9.98 * brpizza;
                    break;
                case "Medium":
                    money = 18.99 * brpizza;
                    break;
                case "Large":
                    money = 25.98 * brpizza;
                    break;
                case "ExtraLarge":
                    money = 35.99 * brpizza;
                    break;
            }

            if (desert == "yes")
            {
                // money = money + 5;
                money += 5;
                if (money > 50)
                {
                    money = money - 0.10 * money;
                }
                else if (money > 25)
                {
                    money = money - 0.07 * money;
                }
                else if (money > 15)
                {
                    money = money - 0.05 * money;
                }
            }
            Console.WriteLine($"{money:F2} lv.");

        }
    }
}