dd

using System;

namespace Резервоар_за_гориво2
{
    class Program
    {
        static void Main(string[] args)
        {
            string type = Console.ReadLine();
            int quantityType = int.Parse(Console.ReadLine());
            string card = Console.ReadLine();
            double price = 0;
            if (type == "Gas")
            {
                price = quantityType * 0.93;
                if (card == "Yes")
                {
                    price = quantityType * 0.85;
                }
            }
            else if (type == "Gasoline")
            {
                price = quantityType * 2.22;

                if (card == "Yes")
                {
                    price = quantityType * 2.04;
                }

            }
            else if (type == "Diesel")
            {
                price = quantityType * 2.33;
                if (card == "Yes")
                {
                    price = quantityType * 2.11;
                }

            }
            if (quantityType >= 20 && quantityType <= 25)
            {
                price = price - (price * 0.08);
            }
            if (quantityType > 25)
            {
                price = price - (price * 0.1);
            }
            Console.WriteLine($"{price:f2} lv.");
        }
    }
}