Enjoyed this. The two letters to a cell made it fairly challenging I thought.
I have 2 loose ends, one minor and one very large. The minor one is 32d - presume the misprint is in the first word but can't see it. Could someone let me know which letter changes.
Second, and more fundamentally, I don't get the significance of the final two characters. How could they precede the other 4? Can anyone give me a hint without giving too much away? Im confident I have the right highlighting given the title, but I just don't see it.
Ta