using System;

​

namespace Cinema

{

    class Cinema

    {

        static void Main()

        {

            var projection = Console.ReadLine().ToLower();

            var r = double.Parse(Console.ReadLine());

            var c = double.Parse(Console.ReadLine());

            var sum = c * r;

            var price = 0.0;

​

            if (projection == "premiere")

            {

                price = 12.00;

            }

            else if (projection == "normal")

            {

                price = 7.50;

            }

            else if (projection == "discount")

            {

                price = 5.00;

            }

​

            Console.WriteLine("{0:f2} leva", (sum * price));

        }

    }

}