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

