yesbe

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

namespace FitnessEquipment
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int c = 0;
            for (int i = 0; i < n; i++)
            {
                var FitnessEquipment = Console.ReadLine();
                {
                    if (FitnessEquipment == "treadmill")
                    {
                        c += 5899;
                    }
                    else if (FitnessEquipment == "cross trainer")
                    {
                        c += 1699;
                    }
                    else if (FitnessEquipment == "exercise bike")
                    {
                        c += 1789;
                    }
                    else if (FitnessEquipment == "dumbbells")
                    {
                        c += 579;
                    }




                }




            }
            Console.WriteLine("{0:f2}", c);






        }
    }
}