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

namespace ConsoleApp15
{
    class Program
    {
        static void Main(string[] args)
        {
            var users = new Dictionary<string, string>();
            string input = null;
            while (input != "Statistics")
            {
                input = Console.ReadLine();
                string[] cmd = input.Split("->");
                string command = cmd[0];
                //string username = cmd[1];
                if (command == "Add")
                {

                    if (!users.ContainsKey(cmd[1]))
                    {
                        users.Add(cmd[1], " ");
                    }
                    else
                    {
                        Console.WriteLine($"{cmd[1]} is already registered");
                    }
                }
                if (command == "Send")
                {

                    users[cmd[1]] += cmd[2];
                    //users[cmd[1]].Add(cmd[2]);
                    //users[cmd[1]].Add(cmd[2]);
                }
                if (command == "Delete")
                {
                    if (users.ContainsKey(cmd[1]))
                    {
                        users.Remove(cmd[1]);
                    }
                    else
                    {
                        Console.WriteLine($"{cmd[1]} not found!");
                    }
                }
            }
            //foreach (var kvpLikes in users.OrderByDescending(u => u.Value).ThenBy(u => u.Key))
            //{
            //    Console.WriteLine($"{kvpLikes.Key}: {kvpLikes.Value + users[kvpLikes.Key]} ");
            ////}
            foreach (var user in users.OrderBy(u => u.Value).ThenByDescending(u => u.Key))
            {
                Console.Write($"{user.Key}: ");
                Console.WriteLine();

                    Console.WriteLine($"- {user.Value} ");



            }
            //foreach (var item in users.OrderBy(x => x.Key))
            //{
            //    Console.Write($"{item.Key}");
            //    foreach (string shit in item.Value)
            //    {
            //        Console.WriteLine($"{shit}   ");
            //    }

            //}
        }
    }
}