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

namespace _09._ForceBook
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = string.Empty;
            string side = string.Empty;
            string name = string.Empty;

            var sides = new Dictionary<string, List<string>>();

            while ((input = Console.ReadLine()) != "Lumpawaroo")
            {

                if (input.Contains("|"))
                {
                    side = input.Split(" | ")[0];
                    name = input.Split(" | ")[1];


                    if (!sides.ContainsKey(side))
                    {
                        sides.Add(side, new List<string>());
                        sides[side].Add(name);
                    }
                    else
                    {
                        if (!sides[side].Contains(name))
                        {
                            sides[side].Add(name);
                        }
                    }
                }
                else if (input.Contains("->"))
                {
                    side = input.Split(" -> ")[1];
                    name = input.Split(" -> ")[0];

                    int index = 0;

                    foreach (var item in sides)
                    {
                        if (item.Value.Contains(name))
                        {
                            index = item.Value.IndexOf(name);
                            item.Value.RemoveAt(index);
                            break;
                        }
                    }

                    if (sides.ContainsKey(side))
                    {
                        Console.WriteLine($"{name} joins the {side} side!");
                        sides[side].Add(name);
                    }
                    else
                    {
                        Console.WriteLine($"{name} joins the {side} side!");
                        sides.Add(side, new List<string>());
                        sides[side].Add(name);
                    }

                }
            }

            sides = sides.OrderByDescending(x => x.Value.Count).ThenBy(x => x.Key).ToDictionary(a => a.Key, b => b.Value);

            foreach (var item in sides)
            {
                if (item.Value.Count == 0)
                {
                    continue;
                }
                Console.WriteLine($"Side: {item.Key}, Members: {item.Value.Count}");
                sides[item.Key].Sort();
                foreach (var items in sides[item.Key])
                {
                    Console.WriteLine($"! {items}");
                }
            }
        }
    }
}