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

namespace _0._3OnTimeForTheExam
{
    class Program
    {
        static void Main(string[] args)
        {
            var timeOftheExam = int.Parse(Console.ReadLine());
            var minutesOfTheExam = int.Parse(Console.ReadLine());
            var timeOfArriving = int.Parse(Console.ReadLine());
            var minutesOfArriving = int.Parse(Console.ReadLine());

            var ExamTime = (timeOftheExam * 60) + minutesOfTheExam;
            var arrivingTime = (timeOfArriving * 60) + minutesOfArriving;
            var onTimeDiff = ExamTime - arrivingTime;

            if (arrivingTime==ExamTime || ExamTime > arrivingTime && onTimeDiff <=30)
            {
                Console.WriteLine("On time");
                if (ExamTime > arrivingTime)
                {
                    var difference = ExamTime - arrivingTime;
                    Console.WriteLine("{0} minutes before the start", difference);
                }
            }
            else if (arrivingTime > ExamTime)
            {
                var difference = arrivingTime - ExamTime;
                if (difference<60)
                {
                    Console.WriteLine("Late");
                    Console.WriteLine("{0} minutes after the start", difference);
                }
                else
                {
                    var hourDiff = difference / 60;
                    var minutesDiff = difference % 60;
                    Console.WriteLine("Late");
                    Console.WriteLine("{0}:{1:d2} hours after the start", hourDiff, minutesDiff);
                }
            }
            else if (ExamTime> arrivingTime)
            {
                var difference = ExamTime - arrivingTime;
                if (difference<60)
                {
                    Console.WriteLine("Early");
                    Console.WriteLine("{0} minutes before the start", difference);
                }
                else
                {
                    var hourDiff = difference / 60;
                    var minutesDiff = difference % 60;
                    Console.WriteLine("Early");
                    Console.WriteLine("{0}:{1:d2} hours before the start", hourDiff, minutesDiff);
                }
            }
        }
    }
}