Hello,
If you manage to decode the message, don't worry if some characters are a little off (I had like 14 chars off), don't lose time to try to improve your decoding method, it's not possible.
The solution you get might not work : you can either try different combinations (up to 65000+...) or log out and try with a new stream.
I wish someone told me that before, so here it is!
PS: I think the solution is not case sensitive
Good luck
