//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;


namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
			int countEggs = int.Parse(Console.ReadLine());

            string comand = string.Empty;

            int EggsATM = 0;

            int counterSoldEggs = 0;

            while (countEggs > 0)
            {
                comand = Console.ReadLine();
                if (comand == "Close")
                {
                    Console.WriteLine("Store is closed!");
                    Console.WriteLine("{0} eggs sold.",counterSoldEggs);
                    return;
                }
                else if (comand == "Buy")
                {
                    EggsATM = int.Parse(Console.ReadLine());
                    if (countEggs <= EggsATM)
                    {
                        int calc1 = EggsATM - countEggs;
                        Console.WriteLine("Not enough eggs in store!");
                        Console.WriteLine("You can buy only {0}.", countEggs);
                    }
                    countEggs = countEggs - EggsATM;
                    counterSoldEggs += EggsATM;
                }
                else if (comand == "Fill")
                {
                    EggsATM = int.Parse(Console.ReadLine());
                    countEggs = countEggs + EggsATM;
                }
            }
        }
    }
}