That wouldn't matter, that could be included.
You could count each triple digit letter as two letters and experiment with variations. It'll still take you an hour or so to go over the combinations or less depending on the tool you use and if it can filter meaningless portions etc.
I meant the post as in that's the approach to go to crack codes like this (alphabet-based or alphanumeric), not that I'd be definitely able to do it myself , since I'm still sort of learning, though still I'll try to write the program myself, would be a good challenge.