using System;

namespace FuelTank_2
{
    class Program
    {
        static void Main(string[] args)
        {
            string fuelType = Console.ReadLine();
            double fuelLittres = double.Parse(Console.ReadLine());
            string clubCard = Console.ReadLine();
            double gasolinePrice = 2.22;
            double dieselPrice = 2.33;
            double gasPrice = 0.93;
            double gasolineDisc = 0.18;
            double dieselDisc = 0.12;
            double gasDisc = 0.08;
            double totalPrice = 0.0;
            if (clubCard == "Yes")
            {
                switch (fuelType)
                {
                    case "Gasoline":
                        totalPrice = fuelLittres *( gasolinePrice - gasolineDisc);
                        break;
                    case "Diesel":
                        totalPrice = fuelLittres * (dieselPrice * dieselDisc);
                        break;
                    case "Gas":
                        totalPrice = fuelLittres * (gasPrice- gasDisc);
                        break;
                }
                if (fuelLittres >= 20 && fuelLittres <= 25)
                {
                    totalPrice *= 0.92;
                }
                else if (fuelLittres > 25)
                {
                    totalPrice *= 0.9;
                }
            }
            else
            {
                switch (fuelType)
                {
                    case "Gasoline":
                        totalPrice = fuelLittres * gasolinePrice;
                        break;
                    case "Diesel":
                        totalPrice = fuelLittres * dieselPrice;
                        break;
                    case "Gas":
                        totalPrice = fuelLittres * gasPrice;
                        break;
                }
                if (fuelLittres >= 20 && fuelLittres <= 25)
                {
                    totalPrice *= 0.92;
                }
                else if (fuelLittres > 25)
                {
                    totalPrice *= 0.9;
                }
            }
            Console.WriteLine($"{totalPrice:f2} lv.");
        }
    }
}