using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _02.Pets
{
    class Program
    {
        static void Main(string[] args)
        {
            int days = int.Parse(Console.ReadLine());
            double foodAvailable = int.Parse(Console.ReadLine());
            double dogFoodPerDay = double.Parse(Console.ReadLine());
            double catFoodPerDay = double.Parse(Console.ReadLine());
            double turtleFoodPerDay = double.Parse(Console.ReadLine()) / 1000;

            double foodNeeded = (dogFoodPerDay + catFoodPerDay + turtleFoodPerDay) * days;
            if (foodNeeded <= foodAvailable)
            {
                foodAvailable -= foodNeeded;
                Console.Write("{0} kilos of food left.", Math.Floor(foodAvailable));
            }
            else
            {
                Console.WriteLine("{0} more kilos of food are needed.", Math.Ceiling(foodNeeded - foodAvailable));
            }

        }
    }
}