using System;

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

            float amounOfMoney = float.Parse(Console.ReadLine());
            int countOfStudents = int.Parse(Console.ReadLine());
            float priceOfLightsabers = float.Parse(Console.ReadLine());
            float priceOfRobes = float.Parse(Console.ReadLine());
            float priceOfLightBelts = float.Parse(Console.ReadLine());

            int freeBelts = 0;

            if (countOfStudents % 6 == 0)
            {
                freeBelts += 1;
            }

            double neededMoney = priceOfLightsabers * (Math.Ceiling(countOfStudents * 1.1)) + priceOfRobes * countOfStudents + priceOfLightBelts * (countOfStudents - freeBelts);

            if (neededMoney <= amounOfMoney)
            {
                Console.WriteLine($"The money is enough - it would cost {neededMoney:F2}lv.");
            }
            else if (neededMoney > amounOfMoney)
            {
                Console.WriteLine($"Ivan Cho will need {neededMoney - amounOfMoney:F2}lv more.");
            }
        }

    }
}