On Time for the Exam

import java.util.Scanner;

public class OnTimeForTheExam {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int timeExam = Integer.parseInt(scanner.nextLine());
        int minuteExam = Integer.parseInt(scanner.nextLine());
        int timeArrival = Integer.parseInt(scanner.nextLine());
        int minuteArrival = Integer.parseInt(scanner.nextLine());


        int Exam = timeExam * 60 + minuteExam;
        int Arrival = timeArrival * 60 + minuteArrival;
        int difference1 = Exam - Arrival;
        int difference2 = Arrival - Exam;

        if (difference1 > 0 && difference1 <= 30) {
            System.out.printf("On time %n%d minutes before the start", difference1);
        } else if (difference1 > 30 && difference1 <= 59) {
            System.out.printf("Early %n%d minutes before the start", difference1);
        } else if (difference1 > 59) {
            int hh = difference1 / 60;
            int mm = difference1 % 60;
            System.out.printf("Early %n%d:%02d hours before the start", hh, mm);
        }else {
            System.out.println("On time");
        }
        if (difference2 > 0 && difference2 <= 59) {
            System.out.printf("Late %n %d minutes after the start", difference2);
        } else if (difference2 > 59) {
            int hh = difference2 / 60;
            int mm = difference2 % 60;
            System.out.printf("Late %n%d:%02d hours after the start", hh, mm);
        }


    }

}