Rapid rise, that's it. Now i know they have a name for them, but not too useful for me on a touring bicycle. Just counted the rear gear and it it 32T with a Shimano Deore long cage rear derailleur.
The chainrings are 52-42-30, just counted.
Years ago an LBS told me that this was an experiment that didn't work for Shimano and that was why my shifting seemed backwards. Perhaps Fuji got a good deal on these derailleurs because they didn't sell or the previous owner imagined some advantage with this kind of thing.
If the front crank is older you can put a 24t small ring with 74mm bolt circle diameter on the front for low gearing.