1. (04/07 12:40 pm)	the second output file
Question: Will it only print the final path to the egg?  So if the user 
back tracks and takes another route, you will have to discern that those 
moves should not be included?  Or are all moves the user makes included, 
but if the path finding algorithm is used, only the one correct path is 
printed?

Answer: Yes. It prints out only the final path. There are three cases:
I: If the hunter finds a path, print out that path, including all the 
	moves that the hunter makes. 
II: If the hunter asks for help, only print out the path found by your 
	program.
III: If the hunter quits, don't print out anything.

In case I, you can assume that the hunter makes no more than 800 moves.
If the hunter does make more than 800 moves, print out only the first 
800 moves.

2. (04/12 12:59 am) 	multiple path to find the egg
If there are multiple paths to find the egg, your program does not need
to report exactly the path that the master program finds. input2.txt has
multiple paths.

3. (04/20  1:45 pm)	deadline extension
You will have two more days to work on this project. The new due time 
will be 11:59 pm Wednesday, April 25.

I will also be available (in my office)  for project 3 question at: 
Monday: 9:30 am - 12:00 pm, 3:15 pm - 5:30 pm <br>
Tuesday: 9:30 am - 10:45 am, 4:15 pm and after <br>

4. (04/24 12:45 pm) 	user input
When your program reads the user input, make sure that you have considered
that the user actually will type in a direction (W/N/S/E) followed by the
RETURN/ENTER key. Your program should ignore this RETURN/ENTER key, it is
not an invalid input.