2016_November_20M Pets

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

namespace Pets
{
    class Program
    {
        static void Main(string[] args)
        {
            var day = double.Parse(Console.ReadLine());
            var foodKg = int.Parse(Console.ReadLine());
            var dogFood = double.Parse(Console.ReadLine());
            var catFood = double.Parse(Console.ReadLine());
            var turtleFood = double.Parse(Console.ReadLine())/1000;

            var dog = day * dogFood;
            var cat = day * catFood;
            var turtle = day * (turtleFood);

            var total = dog + cat + turtle;

            if (total<=foodKg)

            {
                Console.WriteLine($"{Math.Floor(foodKg-total)} kilos of food left.");
            }

            else
                Console.WriteLine($"{Math.Ceiling(total-foodKg)} more kilos of food are needed.");
        }
    }
}