Breakdown: 12th abbreviated staircases, 16th stream into a few jumpstreams, another couple of 12th streams, then the tough part...16th stream with jumps on the 8ths and 4ths. Emulate patterns of part 2, then get tricky with the ending 12ths (hope you're not index).
Good luck. I think it's worth a Tier Point if you get the full combo.
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