is the challenge working? i've submitted three possible solutions
Only one of them works (and I think there were more than 3).
i rewrote the program to give all possible solutions (found 55) but none of them pass.
i tested the same program on the level 4 challenge and everything worked.
(i know the solution string format is slightly different for level 7)
lol nevermind
Posted by 
on 2011-10-11 22:28:13 
Posted by 
on 2011-10-12 07:56:08