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

namespace AsyncronousProgramming
{
    class Program
    {
        static void Main(string[] args)
        {
            string command = Console.ReadLine();
            var input = new Dictionary<string, Dictionary<string, int>>();

            while (command != "end")
            {
                var tokens = command
                    .Split(new string[] { "IP=", " ", "user=" }, StringSplitOptions.RemoveEmptyEntries);
                var ip = tokens[0];
                var user = tokens[2];

                if (!input.ContainsKey(user))
                {
                    input.Add(user, new Dictionary<string, int>());
                }

                if (!input[user].ContainsKey(ip))
                {
                    input[user].Add(ip, 0);
                }

                input[user][ip]++;
                command = Console.ReadLine();
            }

            foreach (var item in input.OrderBy(x => x.Key))
            {
                Console.WriteLine($"{item.Key}: ");
                Console.WriteLine($"{string.Join(", ", item.Value.Select(x=> $"{x.Key} => {x.Value}"))}.");
            }
        }
    }
}