Own Business

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

namespace _4.Own_Bussiness
{
    class Program
    {
        static void Main(string[] args)
        {
            int widthFreePlace = int.Parse(Console.ReadLine());
            int lenghtFreePlace = int.Parse(Console.ReadLine());
            int heightFreePlace = int.Parse(Console.ReadLine());

            string command = string.Empty;
            double areaFreePlace = 0;
            double areaBox = 0;

            while((command = Console.ReadLine()) != "Done")
            {
                areaFreePlace = widthFreePlace * lenghtFreePlace * heightFreePlace;
                int numberBox = int.Parse(command);
                areaBox += numberBox;

                if(areaFreePlace < areaBox && command != "Done")
                {
                    break;
                }
            }
            if(areaFreePlace > 0 && command == "Done")
            {
                Console.WriteLine($"{areaFreePlace - areaBox} Cubic meters left.");
            }
            else
            {
                Console.WriteLine($"No more free space! You need {Math.Abs(areaFreePlace - areaBox)} Cubic meters more.");
            }

        }
    }
}