*
*
*
AAAAAAAAAAAAAAA   AAAAAAAAAA
BBBBBBBBBBBBBBB   BBBBBBBBBB
BBBBBBBBBBBB         BBBBBBB
         b                  
*
GG    GGGGGGGGGGGGGGGGGGGGGG
       ABEGDAAABAEGHDA AAAAA
        AA  A  DAEE  DC  AB 
      A G G G GGG G   G GG G
GG          b               
GG                          
 GG GGGGGGGGGGGGGGGG GGG    
       b                  b 
*
GGG  GGGGG GGGGGGGGGGGGGGGGG
      b     b     b    b    
*
GGG GHGHGHGHGHG  HGHGHGHGHGH
*
*
  DBBBBBBBBBBBBBBBBBBBBBBF  
  HAAAAAAAAAAAAAAAAAAAAAAE  
  H                      E  
A H        HHHHHH        E A
A H       H  b   H       E A
  H     HH        HH     E  
  H      HHHHHHHHHH      E  
  H     HH     b  HH     E  
  H       H      H       E  
 AH        HHHHHH        EA 
 AH                      EA 
  H                      E  
*
*
BBBBBBBBBBA       BBBBBBBBBB
  A   A     A     A    A    
AAA    A            A    A  
BBBBBBBBBBBBB@@BBBBBBBBBBBBB