using System;

namespace _10_Rage_Expenses
{
    class Program
    {
        static void Main(string[] args)
        {
            int games = int.Parse(Console.ReadLine());
            double headsetpr = double.Parse(Console.ReadLine());
            double mousepr = double.Parse(Console.ReadLine());
            double keyboardpr = double.Parse(Console.ReadLine());
            double displaypr = double.Parse(Console.ReadLine());
            int headset = 0;

            for (int i = 1; i <= games; i+=2)
            {
                headset = i/2;
            }
            int mouse = 0;
            for (int i = 1; i <= games; i += 3)
            {
                mouse = i/3;
            }
            int keyboard = 0;
            for (int i = 1; i <= games; i += 6)
            {
                keyboard = i/6;
            }
            int display = 0;
            for (int i = 1; i <= games; i += 12)
            {
                display = i/12;
            }
            double price = headset * headsetpr + mouse * mousepr + keyboard * keyboardpr + display * displaypr;
            Console.WriteLine($"Rage expenses: {price:f2} lv.");
        }
    }
}