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

namespace _09.On_Time_for_the_Exam3
{
    class Program
    {
        static void Main(string[] args)
        {
            int hoursExam = int.Parse(Console.ReadLine());
            int minutesExam = int.Parse(Console.ReadLine());
            int hoursArrival = int.Parse(Console.ReadLine());
            int minutesArrival = int.Parse(Console.ReadLine());
            int differenceHours = 0;
            int differenceMinutes = 0;

            differenceHours = hoursArrival - hoursExam;
            differenceMinutes = minutesArrival - minutesExam;

            if (differenceHours == 0)
            {
                if (differenceMinutes == 0)
                {
                    Console.WriteLine("On time");
                }

                else if ((differenceMinutes < 0) && (Math.Abs(differenceMinutes) > 30))
                {
                    Console.WriteLine("Early");
                    Console.WriteLine($"{Math.Abs(differenceMinutes)} minutes before the start");
                }
                else if (differenceMinutes > 0)
                {
                    Console.WriteLine("Late");
                    Console.WriteLine($"{differenceMinutes} minutes after the start");
                }
            }
            else if (differenceHours > 0)
            {
                if (differenceMinutes == 0)
                {
                    Console.WriteLine("Late");
                    Console.WriteLine($"{differenceHours}:00 hours after the start");
                }
                else if (differenceMinutes > 0)
                {
                    Console.WriteLine("Late");
                    if (differenceMinutes < 10)
                    {
                        Console.WriteLine($"{differenceHours}:0{differenceMinutes} hours after the start");
                    }
                    else
                    {
                        Console.WriteLine($"{differenceHours}:{differenceMinutes} hours after the start");
                    }

                }
                else if (differenceMinutes < 0)
                {
                    differenceHours -= 1;
                    differenceMinutes = minutesArrival + minutesExam;
                    Console.WriteLine("Late");

                    if (differenceHours == 0)
                    {
                        if (differenceMinutes < 10)
                        {
                            Console.WriteLine($"0:{differenceMinutes} minutes after the start");
                        }
                        else
                        {
                            Console.WriteLine($"{differenceMinutes} minutes after the start");
                        }

                    }
                    else if (differenceHours > 0)
                    {
                        if (differenceMinutes < 10)
                        {
                            Console.WriteLine($"{differenceHours}:0{differenceMinutes} hours after the start ");
                        }
                        else
                        {
                            Console.WriteLine($"{differenceHours}:{differenceMinutes} hours after the start ");
                        }
                    }
                }
            }
            else if (differenceHours < 0)
            {
                if (differenceMinutes != 0 && differenceMinutes > 0)
                {
                    differenceHours += 1;
                    differenceMinutes = (60 - minutesArrival) + minutesExam;
                }
                if (differenceMinutes == 0)
                {
                    Console.WriteLine("Early");
                    Console.WriteLine($"{Math.Abs(differenceHours)}:00 hours before the start");
                }
                else if (differenceMinutes > 0 && differenceMinutes > 30)
                {
                    if (differenceHours == 0)
                    {
                        Console.WriteLine("Early");
                        Console.WriteLine($"{differenceMinutes} minutes before the start");
                    }
                    else if (differenceHours < 0)
                    {
                        if (differenceMinutes < 10)
                        {
                            Console.WriteLine("Early");
                            Console.WriteLine($"{differenceHours}:0{differenceMinutes} hours before the start");
                        }
                        else
                        {
                            Console.WriteLine("Early");
                            Console.WriteLine($"{differenceHours}:{differenceMinutes} hours before the start");
                        }

                    }
                }
                else if (differenceMinutes > 0 && differenceMinutes <= 30)
                {
                    Console.WriteLine("On time");
                    differenceHours += 1;
                    differenceMinutes = (60 - minutesArrival) + minutesExam;
                    Console.WriteLine($"{differenceMinutes} minutes before the start");
                }
                else if (differenceMinutes < 0)
                {
                    differenceHours = hoursExam - hoursArrival;
                    differenceMinutes = minutesExam - minutesArrival;
                    Console.WriteLine("Early");
                    if (differenceMinutes < 10)
                    {
                        Console.WriteLine($"{differenceHours}:0{differenceMinutes} hours before the start");
                    }
                    else
                    {
                        Console.WriteLine($"{differenceHours}:{differenceMinutes} hours before the start");
                    }

                }
            }

        }
    }
}