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

