Pets

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

namespace Pets
{
    class Pets
    {
        static void Main(string[] args)
        {
            int days = int.Parse(Console.ReadLine());
            int food = int.Parse(Console.ReadLine());
            double dogFood = double.Parse(Console.ReadLine());
            double catFood = double.Parse(Console.ReadLine());
            double turtleFood = double.Parse(Console.ReadLine());
            double dogF = dogFood * days;
            double catF = catFood * days;
            double turtleF = turtleFood / 1000 * days;
            double totalFood = dogF + catF + turtleF;
            if (totalFood <= food)
            {
                Console.WriteLine("{0} kilos of food left.", Math.Floor(food - totalFood));

            }
            else
            {
                Console.WriteLine("{0} more kilos of food are needed.", Math.Ceiling(totalFood - food));
            }

        }
    }
}