using System;

namespace Zadacha2
{
    internal class Program
    {
        static void Main(string[] args)
        {

            int santaDaysMissing = int.Parse(Console.ReadLine());
            int foodLefted = int.Parse(Console.ReadLine());
            double foodForDeerOne = double.Parse(Console.ReadLine());
            double foodForDeerTwo = double.Parse(Console.ReadLine());
            double foodForDeerThree = double.Parse(Console.ReadLine());

            double foodNeeded = 0;

            foodForDeerOne = foodForDeerOne * santaDaysMissing;
            foodForDeerTwo = foodForDeerTwo * santaDaysMissing;
            foodForDeerThree = foodForDeerThree * santaDaysMissing;

            foodNeeded = foodForDeerOne + foodForDeerTwo + foodForDeerThree;

            if (foodLefted > foodNeeded)
            {
                Console.WriteLine($"{foodLefted - foodNeeded} kilos of food left.");
            }
            else
            {
                Console.WriteLine($"(Math.Ceiling{foodNeeded - foodLefted}) more kilos of food are needed.");
            }

        }
    }
}