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

namespace _04.Easter_Shop
{
    class Program
    {
        static void Main(string[] args)
        {
            string command = Console.ReadLine();


            int soldEggs = 0;
            int numberOfEggs = int.Parse(command);

            while (command != "Close")
            {

                command = Console.ReadLine();


                if (command == "Close")
                {
                    Console.WriteLine("Store is closed!");
                    Console.WriteLine(soldEggs + " eggs sold.");
                }


                int fillOrBuyNumberOfEggs = int.Parse(Console.ReadLine());

                if (command == "Buy" && fillOrBuyNumberOfEggs > numberOfEggs)
                {
                    Console.WriteLine("Not enough eggs in store!");
                    Console.WriteLine("You can buy only " + numberOfEggs + ".");
                }
                else
                {
                    if (command == "Buy")
                    {
                        numberOfEggs -= fillOrBuyNumberOfEggs;
                        soldEggs += fillOrBuyNumberOfEggs;
                    }
                    else if (command == "Fill")
                    {
                        numberOfEggs += fillOrBuyNumberOfEggs;
                    }
                }

            }

        }
    }
}