03

using System;

namespace _03
{
    class Program
    {
        static void Main(string[] args)
        {
            string product = Console.ReadLine();
            int count = int.Parse(Console.ReadLine());
            int day = int.Parse(Console.ReadLine());

            double productPrice = 0;

            if (day <= 15)
            {
                switch (product)
                {
                    case "Cake":
                        productPrice = 24;
                        break;
                    case "Souffle":
                        productPrice = 6.66;
                        break;
                    case "Baklava":
                        productPrice = 12.6;
                        break;
                }
            }
            else
            {
                switch (product)
                {
                    case "Cake":
                        productPrice = 28.7;
                        break;
                    case "Souffle":
                        productPrice = 9.8;
                        break;
                    case "Baklava":
                        productPrice = 16.98;
                        break;
                }
            }

            double discount = 0;
            double sum = productPrice * count;

            if (day <= 22)
            {
                if (sum >= 100 && sum < 200)
                {
                    discount = 0.15;
                }
                else if (sum >= 200)
                {
                    discount = 0.25;
                }
            }
            sum -= sum * discount;

            if (day <= 15)
            {
                discount = 0.1;
            }

            sum -= sum * discount;
            Console.WriteLine($"{sum:f2}");
        }
    }
}