Cake_While_Loop

using System;

namespace Cake_While_loop_exercise
{
    class Program
    {
        static void Main(string[] args)
        {
            int width = int.Parse(Console.ReadLine());
            int length = int.Parse(Console.ReadLine());

            int cakeSize = width * length;
            string command = Console.ReadLine();
            int piecesSize = 0;

            while (command != "STOP")
            {

                piecesSize += int.Parse(command);

                if (piecesSize >= cakeSize)
                {
                    Console.WriteLine($"No more cake left! You need {piecesSize-cakeSize} pieces more.");
                    return;
                }
                command = Console.ReadLine();
            }

            Console.WriteLine($"{cakeSize-piecesSize} pieces are left.");

        }
    }
}