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

namespace ConsoleApplication8
{
    class Program
    {
        static void Main(string[] args)
        {
            TimeSpan examHour = TimeSpan.FromHours(int.Parse(Console.ReadLine()));
            TimeSpan examminute = TimeSpan.FromMinutes(int.Parse(Console.ReadLine()));
            TimeSpan comeHour = TimeSpan.FromHours(int.Parse(Console.ReadLine()));
            TimeSpan comeMinute = TimeSpan.FromMinutes(int.Parse(Console.ReadLine()));

            var examTime = examHour + examminute;
            var comeTime = comeHour + comeMinute;

            if (comeTime == examTime)
            {
                Console.WriteLine("On time");
            }
            else if (comeTime < examTime)
            {
                if (examTime - comeTime <= TimeSpan.FromMinutes(30))
                {
                    examTime -= comeTime;
                    Console.WriteLine("On time");
                    Console.WriteLine(examTime.Minutes + " minutes before the start");
                }
                else if (examTime - comeTime > TimeSpan.FromMinutes(30))
                {
                    examTime -= comeTime;
                    Console.WriteLine("Early");
                    Console.WriteLine($"{examTime.Hours}{examTime.Minutes:00} hours before the start"); // ето тук
                    // Искам когато examTime.Hours е 0 да не се показва изобщо ( вписана по тоя начин ми вади 0 )
                }

            }

        }
    }
}