On Time for the Exam

using System;


namespace _03.On_Time_for_the_Exam
{
    class Program
    {
        static void Main(string[] args)
        {
            int examHour = int.Parse(Console.ReadLine());
            int examMinute = int.Parse(Console.ReadLine());
            int hourOfArriaval = int.Parse(Console.ReadLine());
            int minuteOfArriaval = int.Parse(Console.ReadLine());


            int totalExam = examMinute + (examHour * 60);
            int totalArrival = (hourOfArriaval * 60) + minuteOfArriaval;

            int result = totalArrival - totalExam; //kind of...
            int onTime = totalExam - totalArrival;  //and early
            int hours = result / 60;
            int min = result % 60;


            if (totalExam < totalArrival)
            {
                Console.WriteLine("Late");
                if (hours == 0)
                {
                    if (min < 10)
                        Console.WriteLine($"0{min} minutes after the start");
                    else
                        Console.WriteLine($"{min} minutes after the start");
                }
                else
                {

                    if (min < 10)
                        Console.WriteLine($"{hours}:0{min} hours after the start");
                    else
                        Console.WriteLine($"{hours}:{min} hours after the start");
                }



            }
            else if (onTime <= 30)
            {
                Console.WriteLine("On time");

                min = onTime % 60;

                if (onTime == 0)
                {

                }
                else
                    Console.WriteLine($"{min} minutes before the start");
            }

            else if (onTime > 30)
            {
                Console.WriteLine("Early");
                hours = onTime / 60;
                min = onTime % 60;

                if (hours == 0)
                {

                    if (min < 10)
                        Console.WriteLine($"0{min} minutes before the start");
                    else
                        Console.WriteLine($"{min} minutes before the start");
                }
                else
                {
                    if (min < 10)
                        Console.WriteLine($"{hours}:0{min} hours before the start");
                    else
                        Console.WriteLine($"{hours}:{min} hours before the start");
                }



                ///help :( only 93 of 100 in judge...
            }

        }
    }
}