I---------------------------------------I 
I---------------------------------------I    
I---------------------------------------I     
I---------------------------------------I    
I-12-12---12--13-13--13---(b9)(b9)-(b9)-0-0-0-I 
I-12-12---12/-13-13--13\--(b9)(b9)-(b9)-0-0-0-I 

I---------------------------------------I 
I---------------------------------------I    
I---------------------------------x-x-x-I     
I---------------------------------x-x-x-I    
I-12-12---12--13-13--13---(b9)(b9)-(b9)-0-0-0-I 
I-12-12---12/-13-13--13\--(b9)(b9)-(b9)-0-0-0-I 
                                  PM.....

I---------------------------------------I 
I---------------------------------------I    
I---------------------------------------I     
I--5-x-x-x--2-x-x-x-2-x-x-x-------------I    
I--5-x-x-x--2-x-x-x-2-x-x-x-------------I 
I--3-x-x-x----------2-x-x-x-------------I