english: For starters, we know  that on the correct floor there's one room, let's call it room A, with one door to the control panel room, plus one door to room B, and one to C.
non_english: Za početak, znamo da je na pravom spratu jedna soba, nazovimo je soba A, sa jednim vratima koje vode do kontrolne sobe, uz jedna vrata koja vode do sobe B, i jedna koja vode do sobe C.