Floor: 0
O-O-O-O-C
|   |   | 
O O-O-O-C
| | | | | 
O-O-O-O C
        | 
I-C-C-C-E
  | |   | 
O-O-O-O C
     
Floor: 1
O-O-O O-C
  | | | | 
O-O-O-O C
| | |   | 
O-O-O-O-C
      | | 
C-C-C-C-E
        | 
O-O-O-O-C
     

