pretty Pretty much depend depends on pep people's level and server, some pep divide it by floors ( first server. Some people divide it by floors (first 2 floors, last 2 floors)
other pep divide it by towers, you Other people divide it by towers. You can check walls got corridors that end where stairs is each stair is a tower, when pep tower. When people split it by towers you get all the floors of a tower in that case the guy sayd says 7-8-9 he get all floors of the tower 7 8 9.