Problem_4.ForceBook {

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

namespace Problem_4.ForceBook
{
    class Program


    {

        public class Side
        {
            public string Name { get; set; }
            public List<string> Members { get; set; }
            public int MembersCount { get; set; }

            public Side()
            {
                List<string> Members = new List<string>();
            }
        }
        static void Main(string[] args)
        {
            var input = Console.ReadLine();

            var tokens = new List<string>();

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

            while (input!= "Lumpawaroo")
            {
                if (input.Contains("|"))
                {
                    tokens = input
                   .Split(new char[] { '|', ' '},StringSplitOptions.RemoveEmptyEntries)
                   .ToList();

                    var sideName = tokens[0];
                    var sideMember = tokens[1];
                    if (!sideMembers.ContainsKey(sideName))
                    {
                        sideMembers.Add(sideName, new List<string>());
                        sideMembers[sideName].Add(sideMember);
                    }
                    else
                    {
                        sideMembers[sideName].Add(sideMember);
                    }

                }
                else
                {
                    tokens = input
                    .Split(new string[] {"->"},StringSplitOptions.RemoveEmptyEntries)
                    .ToList();

                    var memberName = tokens[0];
                    var side = tokens[1];

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


                    if (sideMembers[side].Contains(memberName))
                    {
                        sideMembers.Remove(memberName);
                    }
                }



                input = Console.ReadLine();
            }
            foreach (var item in sideMembers.OrderByDescending(x=>x.Value.Count).ThenBy(y=>y.Key))
            {
                Console.WriteLine($"Side: {item.Key}, Members: {item.Value.Count()}");
                Console.WriteLine($"! {string.Join("\n",item.Value)}");
            }
        }
    }
}