using System;

namespace FuelTank2
{
    class Program
    {
        static void Main(string[] args)
        {
            //Бензин – 2.22 лева за един литър,
            //Дизел – 2.33 лева за един литър
            //Газ – 0.93 лева за литър
            //18 ст.за литър бензин
            //12 ст.за литър дизел
            //8 ст.за литър газ.

            string fuelType = Console.ReadLine();
            double fuelInLiters = double.Parse(Console.ReadLine());
            string cardOwner = Console.ReadLine();

            if (fuelType == "Gas")
            {

                if (cardOwner == "Yes")
                {
                    double gasMoney = fuelInLiters * (0.93 - 0.08);

                    if (fuelInLiters >= 20 && fuelInLiters <= 25)
                    {
                        Console.WriteLine($"{(gasMoney - gasMoney * 0.08):f2} lv.");
                    }
                    else if (fuelInLiters > 25)
                    {
                        Console.WriteLine($"{(gasMoney - gasMoney * 0.10):f2} lv.");
                    }
                    else
                    {
                        Console.WriteLine($"{gasMoney:f2} lv.");
                    }
                }
                else
                {
                    double gasMoney = fuelInLiters * 0.93;
                    if (fuelInLiters >= 20 && fuelInLiters <= 25)
                    {
                        Console.WriteLine($"{(gasMoney - gasMoney * 0.08):f2} lv.");
                    }
                    else if (fuelInLiters > 25)
                    {
                        Console.WriteLine($"{(gasMoney - gasMoney * 0.10):f2} lv.");
                    }
                    else
                    {
                        Console.WriteLine($"{gasMoney:f2} lv.");
                    }
                }
            }
            else if (fuelType == "Gasoline")
            {
                if (cardOwner == "Yes")
                {
                    double gasolineMoney = fuelInLiters * (2.22 - 18);

                    if (fuelInLiters >= 20 && fuelInLiters <= 25)
                    {
                        Console.WriteLine($"{(gasolineMoney - gasolineMoney * 0.08):f2} lv.");
                    }
                    else if (fuelInLiters > 25)
                    {
                        Console.WriteLine($"{(gasolineMoney - gasolineMoney * 0.10):f2} lv.");
                    }
                    else
                    {
                        Console.WriteLine($"{gasolineMoney:f2} lv.");
                    }
                }
                else
                {
                    double gasolineMoney = fuelInLiters * 2.22;

                    if (fuelInLiters >= 20 && fuelInLiters <= 25)
                    {
                        Console.WriteLine($"{(gasolineMoney - gasolineMoney * 0.08):f2} lv.");
                    }
                    else if (fuelInLiters > 25)
                    {
                        Console.WriteLine($"{(gasolineMoney - gasolineMoney * 0.10):f2} lv.");
                    }
                    else
                    {
                        Console.WriteLine($"{gasolineMoney:f2} lv.");
                    }
                }

            }
            else if (fuelType == "Diesel")
            {
                if (cardOwner == "Yes")
                {
                    double dieselMoney = fuelInLiters * (2.33 - 12);

                    if (fuelInLiters >= 20 && fuelInLiters <= 25)
                    {
                        Console.WriteLine($"{(dieselMoney - dieselMoney * 0.08):f2} lv.");
                    }
                    else if (fuelInLiters > 25)
                    {
                        Console.WriteLine($"{(dieselMoney - dieselMoney * 0.10):f2} lv.");
                    }
                    else
                    {
                        Console.WriteLine($"{dieselMoney:f2} lv.");
                    }
                }
                else
                {
                    double dieselMoney = fuelInLiters * 2.33;

                    if (fuelInLiters >= 20 && fuelInLiters <= 25)
                    {
                        Console.WriteLine($"{(dieselMoney - dieselMoney * 0.08):f2} lv.");
                    }
                    else if (fuelInLiters > 25)
                    {
                        Console.WriteLine($"{(dieselMoney - dieselMoney * 0.10):f2} lv.");
                    }
                    else
                    {
                        Console.WriteLine($"{dieselMoney:f2} lv.");
                    }
                }
            }
        }
    }

}