using System;

namespace ConsoleApp18
{
    class Program
    {
        static void Main(string[] args)
        {
            int games = int.Parse(Console.ReadLine());
            double headsetPrize = double.Parse(Console.ReadLine());
            double mousePrize = double.Parse(Console.ReadLine());
            double keyboardPrize = double.Parse(Console.ReadLine());
            double displayPrize = double.Parse(Console.ReadLine());
            double rageExp = 0;
            for (int i = 1; i < games+1; i++)
            {
                if (i % 2 == 0) rageExp += headsetPrize;
                if (i % 3 == 0) rageExp += mousePrize;
                if (i % 6 == 0) rageExp += keyboardPrize;
                if (i % 12 == 0) rageExp += displayPrize;
            }
            Console.WriteLine($"Rage expenses: {rageExp:f2} lv.");
        }
    }
}