2 / x +-o+ + | | +---+ Second floor | 2 o \ + + x | | 2 +--+-o+--+--+o-+ / | /| | x + / + +--+ / o / | 2 / +--+ / / |x / +--+ + +-o+ | | | \ + o \ | +--+ \ + | \ | +--+--+--+--+--+--+--+--+--+--+--+ | | | + + + | | First floor + + | | x + + | | + + | 1 Quebec