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

