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

namespace Mentor_Group
{
    class Program
    {
        static void Main(string[] args)
        {
            SortedDictionary<string, List<DateTime>> DataDictionary = new SortedDictionary<string, List<DateTime>>();
            Dictionary<string, List<string>> ComentDictionary = new Dictionary<string, List<string>>();
            while (true)
            {
                string Input = Console.ReadLine();
                if (Input == "end of dates") break;
                string[] DataInput = Input.Split(new[] { ' ', ',' }, StringSplitOptions.RemoveEmptyEntries).ToArray();

                string Name = DataInput[0];
                if (!DataDictionary.ContainsKey(Name))
                {
                    List<DateTime> Data = new List<DateTime>();
                    for (int i = 1; i < DataInput.Length; i++)
                    {
                        DateTime CurrentData = DateTime.ParseExact(DataInput[i], "dd/MM/yyyy", CultureInfo.InvariantCulture);
                        //if (!Data.Contains(CurrentData))
                        //{
                            Data.Add(CurrentData);
                        //}

                    }
                    DataDictionary.Add(Name, Data);
                }
                else
                {
                    List<DateTime> Data = DataDictionary[Name];

                    for (int i = 1; i < DataInput.Length; i++)
                    {
                        DateTime CurrentData = DateTime.ParseExact(DataInput[i], "dd/MM/yyyy", CultureInfo.InvariantCulture);
                        //if (!Data.Contains(CurrentData))
                        //{
                            Data.Add(CurrentData);
                        //}

                    }
                    // DataDictionary.Add(Name, Data);
                    DataDictionary[Name] = Data;
                }
            }
            while (true)
            {
                string Input = Console.ReadLine();
                if (Input == "end of comments") break;
                string[] DataInput = Input.Split('-').ToArray();
                string Name = DataInput[0];
                string Coment = DataInput[1];
                if (!DataDictionary.ContainsKey(Name)) continue;
                if (!ComentDictionary.ContainsKey(Name))
                {

                    ComentDictionary.Add(Name, null);
                    List<string> Bufera = new List<string>();
                    Bufera.Add(Coment);
                    ComentDictionary[Name] = Bufera;
                }
                else
                {
                    ComentDictionary[Name].Add(Coment);
                }
            }
            foreach (var KVP in DataDictionary)
            {
                Console.WriteLine(KVP.Key);
                Console.WriteLine("Comments:");
                if (ComentDictionary.ContainsKey(KVP.Key))
                {
                    foreach (var coment in ComentDictionary[KVP.Key])
                    {
                        Console.WriteLine("- " + coment);
                    }
                }
                Console.WriteLine("Dates attended:");
                List<DateTime> SortedData = DataDictionary[KVP.Key].ToList();
                SortedData = SortedData.OrderBy(n => n).ToList();
                foreach (var Data in SortedData)
                {

                    Console.WriteLine($"-- {Data:dd/MM/yyyy}");
                }
            }
        }
    }
}