OnTimeForTheExam

import java.util.Scanner;

public class OnTimeForTheExam {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int examHours = Integer.parseInt(scanner.nextLine());
        int examMins = Integer.parseInt(scanner.nextLine());
        int arrivalHours = Integer.parseInt(scanner.nextLine());
        int arrivalMins = Integer.parseInt(scanner.nextLine());

        int examTimeInMins = examHours * 60 + examMins;
        int arrivalTimeInMins = arrivalHours * 60 + arrivalMins;

        int time = examTimeInMins - arrivalTimeInMins;

        if(time < 0){
            System.out.println("Late");
            int hours = Math.abs(time) / 60;
            int mins = Math.abs(time) % 60;
            if(time > -60){
                System.out.printf("%d minutes after the start", mins);
            }else{
                System.out.printf("%d:%02d hours after the start", hours, mins);
            }
        }else if(time <= 30){
            System.out.println("On time");
            if(time > 0){
                System.out.printf("%d minutes before the start", time);
            }
        }else{
            System.out.println("Early");
            int hours = time / 60;
            int mins = time % 60;
            if(time >= 60){
                System.out.printf("%d:%02d hours before the start",hours, mins );
            }else{
                System.out.printf("%d minutes before the start", mins);
            }
        }
    }
}