update37
Run 
update37 to download the file 
lab07.hs needed for this week's lab.  This file will be placed in your 
cs37/labs/07 directory.
Submit
Once you are satisfied with your programs, hand them in by using
handin37.  When you run handin37, be sure to select your partner.  If your partner ran handin37, you do not need to do so.