using System;

namespace Fuel_Tank___Part_2
{
    class Program
    {
        static void Main(string[] args)
        {
            double benzin = 2.22;
            double dizel = 2.33;
            double gaz = 0.93;
            double discountBenzin = 0.18;
            double discountDizel = 0.12;
            double discountGaz = 0.08;
            string fuel = Console.ReadLine();
            double liters = double.Parse(Console.ReadLine());
            string clubCard = Console.ReadLine();
            double price = 0;
            double totalPrice = 0;
            bool clubCardd = false;

            if (clubCard == "Yes")
            {
                clubCardd = true;
            }
            else
            {
                clubCardd = false;
            }
            switch (fuel)
            {
                case
                    "Gasoline":
                       price = benzin - discountBenzin;
                    break;
                case
                    "Diesel":
                        price = dizel - discountDizel;
                    break;
                case
                    "Gas":
                       price = gaz - discountGaz;
                    break;
            }
            if (clubCard == "No")
            {
                switch (fuel)
                {
                    case "Gasoline":
                        price = benzin;
                        break;
                    case "Diesel":
                        price = dizel;
                        break;
                    case  "Gas" :
                        price = gaz;
                            break;
                }
            }
            if (liters >= 25)
            {
                totalPrice = liters * price - ((10 * price)/100);
            }
            else if (liters >= 20)
            {
                totalPrice = liters * price - ((8 * price) / 100);
            }
            else
            {
                totalPrice = liters * price;
            }
            Console.WriteLine($"{totalPrice:f2} lv.");
        }
    }
}