Bike Race

using System;

namespace BikeRace
{
    class Program
    {
        public static void Main()
        {
            int junior = int.Parse(Console.ReadLine());
            int senior = int.Parse(Console.ReadLine());
            string trace = Console.ReadLine();
            double junSum = 0;
            double senSum = 0;

            if (trace == "trail")
            {
                junSum = 5.5;
                senSum = 7;
            } else if (trace == "cross - country")
            {
                junSum = 8;
                senSum = 9.5;
            } else if (trace == "downhill")
            {
                junSum = 12.25;
                senSum = 13.75;
            } else if (trace == "road")
            {
                junSum = 20;
                senSum = 21.5;
            }

            double sum = junior * junSum + senior * senSum;

            if (trace == "cross - country" && junior + senior >= 50)
            {
                sum *= 0.75;
            }
            Console.WriteLine($"{ 0.95 * sum:f2}");
        }
    }
}