Notes:
- The label '3-elevator_bottom' is not marked correct: On the way out, between '2-elevator_top' and '3-elevator_bottom', the elevator stopped at the first floor. Thinking, it was ground floor, I marked the location (assigned a label) and rotated as per route. However, that was not the case and thus I had to stay in that position till the ground floor.All other labels are marked correctly.
