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

namespace _04._ForceBook
{
    class Program
    {
        static void Main(string[] args)
        {
            SortedDictionary<string, string> data = new SortedDictionary<string, string>();

            string userName = "";
            string side = "";


            while (true)
            {
                string input = Console.ReadLine();

                if (input == "Lumpawaroo")
                {
                    break;
                }

                if (input.Contains("|"))
                {
                    string[] user = input.Split("|").Select(tag => tag.Trim()).
                  Where(tag => !string.IsNullOrEmpty(tag)).ToArray();
                    side = user[0];
                    userName = user[1];
                    if (!data.ContainsKey(userName))
                    {
                        data.Add(userName, null);
                    }
                    data[userName] = side;
                }

                else if (input.Contains("->"))
                {
                    string[] user = input.Split("->").Select(tag => tag.Trim()).
                  Where(tag => !string.IsNullOrEmpty(tag)).ToArray();
                    userName = user[0];
                    side = user[1];

                    if (!data.ContainsKey(userName))
                    {
                        data.Add(userName, null);
                    }
                    data[userName] = side;
                    Console.WriteLine($"{userName} joins the {side} side!");
                }
            }

            Dictionary<string, int> count = new Dictionary<string, int>();

            foreach (var item in data)
            {
                if (!count.ContainsKey(item.Value))
                {
                    count.Add(item.Value, 0);
                }
                count[item.Value] += 1;
            }

            foreach (var item in count.OrderBy(e=>e.Key))
            {
                Console.WriteLine($"Side: {item.Key}, Members: {item.Value}");
                foreach (var item2 in data)
                {
                    if (item2.Value == item.Key)
                    {
                        Console.WriteLine($"! {item2.Key}");
                    }
                }
            }
        }
    }
}