using System;

namespace _11.Cinema
{
    class Program
    {
        static void Main(string[] args)
        {
            string projection = Console.ReadLine().ToLower();
            int rows = int.Parse(Console.ReadLine());
            int columns = int.Parse(Console.ReadLine());

            int space = rows * columns;
            double income = -1;

            switch (projection)
            {
                case ("premiere"):
                    income = space * 12;
                    break;
                case ("normal"):
                    income = space * 7.50;
                    break;
                case ("discount"):
                    income = space * 5;
                    break;
            }
            Console.WriteLine($"{income:f2}" + " leva");
        }
    }
}