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

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Town> towns = new List<Town>();
            string input = Console.ReadLine();
            towns = GetDataRecursively(input, towns);
            towns = SortedTowns(towns);
            towns = GroupingStudents(towns);
            Print(towns);
        }
        public static Town CreateTown(string input)
        {
            Town town = new Town();
            string[] townInfo = input.Split(new[] { " => " }, StringSplitOptions.RemoveEmptyEntries);
            town.Name = townInfo[0];
            town.SeatCapacity = townInfo[1].Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Select(int.Parse).First();
            town.Students = new List<Student>();
            town.Groups = new List<Group>();
            return town;
        }
        public static Student CreateStudent(string input)
        {
            string[] studentInfo = Regex.Split(input, @"\s*\|\s*");
            Student student = new Student();
            student.Name = studentInfo[0];
            student.email = studentInfo[1];
            student.RegistrationDate = DateTime.ParseExact(studentInfo[2], "d-MMM-yyyy", CultureInfo.InvariantCulture);
            return student;
        }
        public static void Print(List<Town> towns)
        {
            Console.WriteLine($"Created {towns.Sum(x => x.Groups.Count)} groups in {towns.Count} towns:");
            foreach (var town in towns.OrderBy(x => x.Name))
            {
                foreach (var group in town.Groups)
                {
                    List<string> emails = new List<string>();
                    foreach (var student in group.StudentsInGroup)
                    {
                        emails.Add(student.email);
                    }
                    Console.WriteLine($"{town.Name} => { string.Join(", ", emails)}");
                }
            }
            return;
        }
        public static List<Town> GetDataRecursively(string input, List<Town> towns)
        {
            if (input == "End")
            {
                return towns;
            }
            Town town = CreateTown(input);
            while (true)
            {
                input = Console.ReadLine();
                if (!input.Contains(" => ") && input != "End")
                {
                    Student student = CreateStudent(input);
                    town.Students.Add(student);
                }
                else
                {
                    towns.Add(town);
                    if (input == "End")
                    {
                        break;
                    }
                    else
                    {
                        towns = GetDataRecursively(input, towns);
                        break;
                    }
                }
            }
            return towns;
        }
        public static List<Town> SortedTowns(List<Town> towns)
        {
            for (int i = 0; i < towns.Count; i++)
            {
                towns[i].Students = towns[i].Students.OrderBy(z => z.RegistrationDate).ThenBy(y => y.Name).ThenBy(x => x.email).ToList();
            }
            return towns;
        }
        public static List<Town> GroupingStudents(List<Town> towns)
        {
            foreach (var town in towns)
            {
                Group group = new Group();
                group.StudentsInGroup = new List<Student>();
                int studentCounter = 0;
                foreach (var student in town.Students)
                {
                    studentCounter++;
                    if (group.StudentsInGroup.Count < town.SeatCapacity)
                    {
                        group.StudentsInGroup.Add(student);
                        if (studentCounter == town.Students.Count)
                        {
                            town.Groups.Add(group);
                        }
                    }
                    else
                    {
                        town.Groups.Add(group);
                        group = new Group();
                        group.StudentsInGroup = new List<Student>();
                        group.StudentsInGroup.Add(student);
                        if (studentCounter == town.Students.Count)
                        {
                            town.Groups.Add(group);
                        }
                    }
                }
            }
            return towns;
        }
    }
    class Town
    {
        public List<Student> Students { get; set; }
        public string Name { get; set; }
        public int SeatCapacity { get; set; }
        public List<Group> Groups { get; set; }
    }
    class Student
    {
        public string Name { get; set; }
        public string email { get; set; }
        public DateTime RegistrationDate { get; set; }
    }
    class Group
    {
        public List<Student> StudentsInGroup { get; set; }
    }
}