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using System;

namespace _ivotypoto
{
    class Program
    {
        static void Main(string[] args)
        {
            string type = Console.ReadLine();
            int rows = int.Parse(Console.ReadLine());
            int colums = int.Parse(Console.ReadLine());
            double price = 0;

            if (type == "Premiere")
            {
                price = ( colums * rows)*12.00;
            }
            else if (type == "Normal")
            {
                price = (colums * rows) * 7.50;
            }
            else if (type == "Discount")
            {
                price = (colums * rows) * 5;
            }
            Console.WriteLine($"{price:f2} leva");
        }
    }
}