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

namespace _04.RoliTheCoder
{
    class Program
    {
        static void Main(string[] args)
        {
            var eventsBook = new Dictionary<string, Dictionary<string, List<string>>>();
           // var namesAndParticipants = new Dictionary<string, string>();

            while (true)
            {
                var input = Console.ReadLine().Split("#".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
                if (input[0] == "Time for Code")
                {
                    break;
                }

                if (input.Length < 2)
                {
                    continue;
                }

                var eventID = input[0].Trim();
                var secondPartSplit = input[1].Split("@".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
                //if (secondPartSplit.Length<2) //check this one!!!
                //{
                //    continue;
                //}
                var eventName = secondPartSplit[0].Trim();

                List<string> participants = new List<string>();
                for (int i = 1; i < secondPartSplit.Length; i++)
                {
                    participants.Add(secondPartSplit[i].Trim());
                }

                if (!eventsBook.ContainsKey(eventID))
                {
                    eventsBook.Add(eventID, new Dictionary<string, List<string>>());
                    eventsBook[eventID].Add(eventName, new List<string>());
                    foreach (var name in participants)
                    {
                        eventsBook[eventID][eventName].Add(name);
                    }
                    continue;
                }

                if (!eventsBook[eventID].ContainsKey(eventName))
                {
                    continue;
                }

                if (eventsBook[eventID].ContainsKey(eventName))
                {
                    foreach (var name in participants)
                    {
                        if (!eventsBook[eventID][eventName].Contains(name))
                        {
                            eventsBook[eventID][eventName].Add(name);
                        }
                    }
                }
            }

            foreach (var kvp in eventsBook)
            {
                var eventNames = kvp.Value;

                foreach (var party in eventNames.OrderByDescending(x => x.Value.Count).ThenBy(x => x.Key))
                {
                    var participants = party.Value;

                    Console.WriteLine($"{party.Key} - {party.Value.Count}");

                    foreach (var person in participants.OrderBy(x => x))
                    {
                        Console.WriteLine($"@{person}");
                    }
                }
            }
        }
    }
}