namespace Task01CubicArtillery
{
    using System;
    using System.Collections.Generic;
    using System.Linq;

    public class CubicArtillery
    {
        public static void Main(string[] args)
        {
            var maximumCapacity = int.Parse(Console.ReadLine());
            var input = Console.ReadLine();
            var bunkers = new Queue<char>();
            var weapons = new Queue<Queue<int>>();
            while (input != "Bunker Revision")
            {
                var inputElements = input.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries).ToArray();
                foreach (var element in inputElements)
                {
                    int number;
                    if (!int.TryParse(element, out number))
                    {
                        bunkers.Enqueue(char.Parse(element));
                        weapons.Enqueue(new Queue<int>());
                    }
                    else
                    {
                        while (bunkers.Count > 1)
                        {
                            for (var i = 0; i < weapons.Count; i++)
                            {
                                if (weapons.Peek().Sum() == 0 && number > maximumCapacity)
                                {
                                    weapons.Dequeue();
                                    Console.WriteLine($"{bunkers.Dequeue()} -> Empty");
                                    break;
                                }
                                if (weapons.Peek().Sum() + number > maximumCapacity)
                                {
                                    Console.WriteLine($"{bunkers.Dequeue()} -> {string.Join(", ", weapons.Dequeue())}");
                                    break;
                                }
                                    weapons.Peek().Enqueue(number);
                            }
                        }
                        if (number <= maximumCapacity)
                        {
                            while (weapons.Peek().Sum() + number > maximumCapacity)
                            {
                                weapons.Peek().Dequeue();
                            }
                            weapons.Peek().Enqueue(number);
                        }
                    }
                }
                input = Console.ReadLine();
            }
        }
    }
}