23423423423

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp11
{
    class Program
    {
        static void Main(string[] args)
        {

            int gymEquipmentCount = int.Parse(Console.ReadLine());


            var sum = 0;
            var totalSum = 0;




            for (int i = 1; i <= gymEquipmentCount; i++)
            {
                var gymEquipmentBought = Console.ReadLine();

                if (gymEquipmentBought == "treadmill")
                {
                    sum += 5899;
                }
                if (gymEquipmentBought == "cross trainer")
                {
                    sum += 1699;
                }
                if (gymEquipmentBought == "exercise bike")
                {
                    sum += 1789;
                }
                if (gymEquipmentBought == "dumbbells")
                {
                    sum += 579;
                }
            }

            totalSum += sum;

            Console.WriteLine($"{totalSum:F2}");

        }
    }
}