The diagram shows the layout of the part of building indicating the position of the fire exits

The map illustrates the design of part of a building, locating two stairs in a building in which the fire exits.
Overall, it is clear that a building have two position of the fire exits next to two stairs. It is easy to see that the corridor give access to the stair.
Firstly, these bedroom 1,2 and 3 will be using fire exit A next to a stair. It located in the corner in the right, bedroom 1 next to bedroom 3 and opposite bedroom 2 go to the corridor before use stair to exit.
Secondly, the lift next to the bedroom 3 but we do not use it to fire exit. We will use a stair next to lift to exit, it is easy to see that the fire exit B located in stair surrounding bedroom 4, 5, 6 and 7. Therefor, these bedroom will be using this stair go out a building when have fire.