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

namespace _06.UserLog
{
    class Program
    {
        static void Main(string[] args)
        {
            SortedDictionary<string, List<string>> users = new SortedDictionary<string, List<string>>();
            string command = "";
            while (true)
            {
                List<string> input = Console.ReadLine().Split().ToList();
                command = input[0];
                if (command == "end") break;
                int indexOfIP = command.IndexOf('=') + 1;
                string ip = command.Substring(indexOfIP);
                int indexOfUser = input[2].LastIndexOf('=') + 1;
                string user = input[2].Substring(indexOfUser);
                List<string> IPs = new List<string>();
                IPs.Add(ip);
                if (!users.ContainsKey(user))
                {
                    users[user] = IPs;
                }
                else
                {
                    users[user].AddRange(IPs);
                }
            }

            foreach (var user in users)
            {
                Console.WriteLine(user.Key + ": ");
                List<string> IPs = user.Value;
                Dictionary<string, int> numberOfIPs = new Dictionary<string, int>();
                foreach (var ip in IPs)
                {
                    if (!numberOfIPs.ContainsKey(ip))
                    {
                        numberOfIPs[ip] = 1;
                    }
                    else
                    {
                        numberOfIPs[ip] += 1;
                    }
                }

                int count = numberOfIPs.Count;
                foreach (var ip in numberOfIPs)
                {
                    count--;
                    if (count > 0)
                    {
                        Console.Write(ip.Key + " => " + ip.Value + ", ");
                    }
                    else
                    {
                        Console.Write(ip.Key + " => " + ip.Value + ". ");
                    }
                }
                Console.WriteLine();

            }
        }
    }
}