users log

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

namespace _06.User_Logs
{
    class Program
    {
        static void Main(string[] args)
        {
            SortedDictionary<string, int> userLogs = new SortedDictionary<string, int>();
            List<string> userInformation = new List<string>();
            List<string> userName = new List<string>();
            string user = "";
            string ipUserName = "";

            while (true)
            {
                string input = Console.ReadLine();
                if (input == "end")
                    break;

                int startIndexIp = 3;
                int endIndexIp = input.IndexOf('m') - 1;

                for (int i = input.LastIndexOf('=') + 1; i < input.Length; i++)
                {
                    ipUserName += input[i];
                    user += input[i];
                }
                ipUserName += " ";
                for (int i = startIndexIp; i < endIndexIp; i++)
                {
                    ipUserName += input[i];
                }
                userName.Add(user);
                user = "";

                if (userLogs.ContainsKey(ipUserName))
                    userLogs[ipUserName]++;
                else
                    userLogs[ipUserName] = 1;

                ipUserName = "";
            }
            userName = userName.Distinct().ToList();
            userName.Sort();

            int counter = 0;
            int checker = 0;
            for (int i = 0; i < userName.Count; i++)
            {
                Console.WriteLine($"{userName[i]}: ");

                for (int j = 0; j < userLogs.Count; j++)
                {
                    if (userLogs.ElementAt(j).Key.Contains(userName[i]))
                    {
                        counter++;
                    }
                }
                for (int y = 0; y < userLogs.Count; y++)
                {
                    userInformation = userLogs.ElementAt(y).Key.Split(' ').ToList();
                    if (userLogs.ElementAt(y).Key.Contains(userName[i]) && checker == counter - 1)
                    {
                        Console.Write($"{userInformation[1]} => {userLogs.ElementAt(y).Value}.");
                        break;
                    }
                    if (userLogs.ElementAt(y).Key.Contains(userName[i]))
                    {
                        checker++;
                        Console.Write($"{userInformation[1]} => {userLogs.ElementAt(y).Value}, ");
                    }
                }
                Console.WriteLine();
                counter = 0;
                checker = 0;
            }
        }
    }
}