                          
        BBBBB             
        B   B             
        BJ  B             
      BBB  JBB            
      B  J J B            
    BBB B BB B   BBBBBB   
    B   B BB BBBBB  SSB   
    B J  J          SSB   
    BBBBB BBB BLBB  SSB   
        B     BBBBBBBBB   
        BBBBBBB           
                          