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

namespace _3
{
    class Program
    {
        static void Main(string[] args)
        {
            string sizeEgg = Console.ReadLine();
            string colorEgg = Console.ReadLine();
            int partida = int.Parse(Console.ReadLine());

            double total = 0;
            if ((sizeEgg == "Large") && (colorEgg == "Red"))
            {
                double pricePartida = partida * 16;
                double costs = 0.35 * pricePartida;
                 total = pricePartida - costs;
               break;

            }
            else if ((sizeEgg == "Medium") && (colorEgg == "Green"))
            {
                double pricePartida = partida * 9;
                double costs = 0.35 * pricePartida;
                 total = pricePartida - costs;

               break;
            }
            else if ((sizeEgg == "Small") && (colorEgg == "Yellow"))
            {
                double pricePartida = partida * 5;
                double costs = 0.35 * pricePartida;
                 total = pricePartida - costs;

break;
            }
            Console.WriteLine($"{total:F2} leva.");

        }
    }
}