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 examHour = Integer.parseInt(scanner.nextLine());
        int examMinute = Integer.parseInt(scanner.nextLine());
        int arrivalHour = Integer.parseInt(scanner.nextLine());
        int arrivalMinute = Integer.parseInt(scanner.nextLine());
        examMinute += examHour * 60;
        arrivalMinute += arrivalHour * 60;
        int difference = examMinute - arrivalMinute;
        if (difference < 0) {
            System.out.println("Late");
            if (Math.abs(difference) < 60) {
                System.out.printf("%d minutes after the start",Math.abs(difference));
            }else {
                System.out.printf("%d:%02d hours after the start",Math.abs(difference / 60),Math.abs(difference % 60));
            }
        }else if (difference > 0) {
            if (difference <= 30) {
                System.out.println("On time");
            }else {
                System.out.println("Early");
            }
            if (difference < 60) {
                System.out.printf("%d minutes before the start",difference);
            }else {
                System.out.printf("%d:%02d hours before the start",difference / 60,difference % 60);
            }
        }else {
            System.out.println("On time");
        }
    }
}