using System;

public class Program

{

    public static void Main()

    {

        //Basic Syntax, Conditional Statements and Loops - Exercise - 09. Padawan Equipment

        decimal budjet = decimal.Parse(Console.ReadLine());

        int.TryParse(Console.ReadLine(), out int students);

        decimal.TryParse(Console.ReadLine(), out decimal saberPrice);

        decimal.TryParse(Console.ReadLine(), out decimal robePrice);

        decimal.TryParse(Console.ReadLine(), out decimal beltPrice);

        int beltNumber = students;

        for (int i = 1; i <= students; i++)

        {

         if (i % 6 == 0) {beltNumber--;}

        }

        decimal needed = (decimal)Math.Ceiling(students*1.1) * saberPrice + students * robePrice + beltNumber * beltPrice;

        if (budjet >= needed)

        {

            Console.WriteLine($"The money is enough - it would cost {needed:F2}lv.");

        }

        else

        {

            Console.WriteLine($"John will need {needed - budjet:F2}lv more.");

        }

    }

}