import java.io.*;

class Time {

// Time
// Constructor for the Time class
// Parameters: int hours, int minutes, String amOrPm
// Pre: none
// Post: an object of type Time will be created with the parameters  
// as given     
// Returns:   reference to a new Time object
// Called by: ?
// Calls: none
	public Time(int hours, int minutes, String amOrPm)
	{
		if (amOrPm.equals ("am")) {  
			if (hours == 12)  // check to see if it is midnight
				hours = 0;   // if so, set hours to military hours ex:  (0:00)
		} else   // pm
			if (hours != 12)  // if after noon, add 12 hours to make military time ex: 14:00
				hours += 12 
			
		
		totalMinutes= hours * 60 + minutes;  // convert hours and minutes into minutes
		}
		
		
		// Time
		// Used by addDuration
		// Parameters: int minutes
		// Pre: none
		// Post: updates the total minutes  
		// Returns:   none
		// Called by: addDuration
		// Calls: none
		private Time(int minutes) { 
			this.totalMinutes = minutes;
		}
		
		// addDuration
		// adds time to the currently stored time
		// Parameters: int minutes
		// Pre: none
		// Post: the input minutes will be added to the currently stored minutes and a new object returned  
		// as given     
		// Returns:   reference to a new Time object
		// Called by: ?
		// Calls: Time

		public Time addDuration (int minutes){
			int newTotalMinutes = totalMinutes + minutes;
			Time newTime = new Time(newTotalMinutes);
			return newTime;
		}

	// addDuration
		// adds time to the currently stored time
		// Parameters: int hours, int minutes
		// Pre: none
		// Post: the input hours and minutes will be added to the currently stored minutes and a new object returned  
		// as given     
		// Returns:   reference to a new Time object
		// Called by: ?
		// Calls: Time


		public Time addDuration (int hours, int minutes){
			int newTotalMinutes = totalMinutes + (hours *60 + minutes);
			Time newTime = new Time(newTotalMinutes);
			return newTime;
		}

		// isBefore
		// compares two times and determines if the time stored in this object is before
		// the input time
		// Parameters: Time timeToCompare
		// Pre: another Time object must exist
		// Post: the two times will be compared and if the current Time object stores a time less than
		// the input time, a true will be returned
		// Returns:   boolean
		// Called by: ?
		// Calls: none


		public boolean isBefore (Time t){
			return totalMinutes < t.totalMinutes;
		}
	
		// isAfter
		// compares two times and determines if the time stored in this object is after
		// the input time
		// Parameters: Time timeToCompare
		// Pre: another Time object must exist
		// Post: the two times will be compared and if the current Time object stores a time greater than
		// the input time, a true will be returned
		// Returns:   boolean
		// Called by: ?
		// Calls: none

	
		public boolean isAfter(Time t){
			return totalMinutes < t.totalMinutes; 
		}

		// print - prints all the information for the given Time		
		// Parameters: none
		// Pre: an Time object must exist
		// Post:  none    
		// Returns:   none
		// Called by: ?
		// Calls: none
		//
		
		public void print (){
			int hours = totalMinutes / 100;  // convert total minutes to hours
			boolean isAfternoon;
			if (hours >= 12){   // if after noon convert back to standard time (vs. military)
				isAfternoon=true;
				hours = hours - 12;
			}
			else {
				isAfternoon = false;
				if (hours = 0)  
					hours = 12;
			} // end else
			
			System.out.print(hours);
			System.out.print(":");
			System.out.print(totalMinutes%60);  // convert total minutes to minutes
			if(isAfternoon);
				System.out.print(" pm");
			else
				System.out.print(" am");

			System.out.println();
		} // end print

		private int totalMinutes;
	} // end Time