using System;
using System.Collections.Generic;
using System.Linq;

namespace Associativ_Array
{
    class Lab
    {
        static void Main()
        {
            var dict = new Dictionary<string, List<string>>();

            while (true)
            {
                string input = Console.ReadLine();
                if (input == "Lumpawaroo")
                {
                    break;
                }

                if (input.Contains("|"))
                {
                    string[] array = input.Split(" | ").ToArray();
                    string firstCommand = array[0];
                    string secondCommand = array[1];

                     if (!dict.ContainsKey(firstCommand))
                    {
                        dict[firstCommand] = new List<string>();
                    }
                    if (!dict[firstCommand].Contains(secondCommand))
                    {
                        dict[firstCommand].Add(secondCommand);
                    }

                }
                else
                {
                    string[] array = input.Split(" -> ").ToArray();
                    string firstCommand = array[0];
                    string secondCommand = array[1];

                    foreach (var kpv in dict)
                    {
                        if (kpv.Value.Contains(firstCommand))
                        {
                            kpv.Value.Remove(firstCommand);
                        }
                    }

                    if (!dict.ContainsKey(secondCommand))
                    {
                        dict[secondCommand] = new List<string>();
                    }
                    dict[secondCommand].Add(firstCommand);

                    Console.WriteLine($"{firstCommand} joins the {secondCommand} side!");
                }

            }
            dict = dict
                .Where(x => x.Value.Count>0)
                .OrderByDescending(x => x.Value.Count)
                .ThenBy(x => x.Key)
                .ToDictionary(x => x.Key, x => x.Value);

            foreach (var kpv in dict)
            {
                Console.WriteLine($"Side: {kpv.Key}, Members: {kpv.Value.Count}");
                foreach (var item in kpv.Value.OrderBy(x=>x))
                {
                    Console.WriteLine($"! {item}");
                }
            }
        }
    }
}