*06Problem-UserLogs

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

namespace _06Problem_UserLog
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] input = Console.ReadLine().Split(new char[] { '=', ' ' }, StringSplitOptions.RemoveEmptyEntries).ToArray();

            var userLogs = new SortedDictionary<string, Dictionary<string, int>>();

            while (!input[0].Equals("end"))
            {
                string currentIpAddress = input[1];
                string currentUser = input[input.Length - 1];

                if (userLogs.ContainsKey(currentUser) == false)
                {
                    userLogs.Add(currentUser, new Dictionary<string, int>());
                    userLogs[currentUser].Add(currentIpAddress, 1);
                }
                else
                {
                    if (userLogs[currentUser].ContainsKey(currentIpAddress) == false)
                    {
                        userLogs[currentUser].Add(currentIpAddress, 1);
                    }
                    else
                    {
                        userLogs[currentUser][currentIpAddress]++;
                    }
                }

                input = Console.ReadLine().Split(new char[] { '=', ' ' }, StringSplitOptions.RemoveEmptyEntries).ToArray();
            }


            foreach (var kvp in userLogs)
            {
                Console.WriteLine($"{kvp.Key}: ");

                string[] result = kvp.Value.Select(x => $"{x.Key} => {x.Value}").ToArray();

                Console.WriteLine("{0}.", string.Join(", ", result));
            }
        }
    }
}