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

namespace _3._Nikulden_s_meals
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, List<string>> GuestByMeal = new Dictionary<string, List<string>>();
            int UnlikedCount = 0;

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

                string[] token = input.Split("-", StringSplitOptions.RemoveEmptyEntries);

                string command = token[0];

                if (command == "Like")
                {
                    string guest = token[1];
                    string meal = token[2];

                    if (!GuestByMeal.ContainsKey(guest))
                    {
                        GuestByMeal.Add(guest, new List<string>());
                        GuestByMeal[guest].Add(meal);
                    }

                    else if (!GuestByMeal[guest].Contains(meal))
                    {
                        GuestByMeal[guest].Add(meal);
                    }

                }

                if (command == "Unlike")
                {
                    string guest = token[1];
                    string meal = token[2];

                    if (!GuestByMeal.ContainsKey(guest))
                    {
                        Console.WriteLine($"{guest} is not at the party.");
                    }

                    else if (!GuestByMeal[guest].Contains(meal))
                    {
                        Console.WriteLine($"{guest} doesn't have the {meal} in his/her collection.");
                    }

                    else
                    {
                        GuestByMeal[guest].Remove(meal);
                        Console.WriteLine($"{guest} doesn't like the {meal}.");
                        UnlikedCount += 1;

                    }

                }
            }

            Dictionary<string, List<string>> sorted = GuestByMeal
                .OrderByDescending(x => x.Value.Count)
                .ThenBy(x => x.Key)
                .ToDictionary(x => x.Key, x => x.Value);

            foreach (var kvp in GuestByMeal)
            {
                     Console.Write($"{kvp.Key}: ");

                     Console.WriteLine(string.Join(", ", kvp.Value));

            }
            Console.WriteLine($"Unliked meals: {UnlikedCount}");
        }
    }
}