8
5
5
2
white
  O  
+>*<+
||_||
 / \ 
v   >
  O  
+>*<+
||_||
 /|  
 >J  
  O  
+>*<+
||_||
 /|  
v J  
  O  
+>*<+
||_||
 / \ 
v   >
  O  
+>o<+
|[_]|
 | < 
 J  >
  O  
+>o<+
|[_]|
 |<  
 J > 
  O  
+>o<+
|[_]|
 /|  
 >J  
  O  
+>o<+
|[_]|
 /|  
v J  