Домашни любимци

using System;

namespace dwdwdwdwDD
{
    class Program
    {
        static void Main(string[] args)
        {
            var days = int.Parse(Console.ReadLine());
            var food = double.Parse(Console.ReadLine());

            var dogFood = double.Parse(Console.ReadLine());
            var catFood = double.Parse(Console.ReadLine());
            var turtleFood = double.Parse(Console.ReadLine());

            var totalFood = dogFood * days + catFood * days + (turtleFood / 1000.0) * days;

            food = food - totalFood;

            if (food < 0)
            {
                food = Math.Abs(food);
                food = Math.Ceiling(food);
                Console.WriteLine($"{food} more kilos of food are needed.");
            }
            else
            {
                food = Math.Floor(food);
                Console.WriteLine($"{food} kilos of food left.");
            }
        }
    }
}