                          
       BBBBBB  BBB        
       BSS  B BBLBB       
       BSS  BBB   B       
       BSS     JJ B       
       BSS  B B J B       
       BSSBBB B J B       
       BBBB J BJ  B       
          B  JB J B       
          B J  J  B       
          B  BB   B       
          BBBBBBBBB       
                          