cc              
                  cc           UUUU
      88888      cc         UUUUUUU
  8888     88    cc       UUUUU UUU
 8          8   cc888    UUUUU   UU
            8  cc        UUUUUU UUU
            8  cc          UUUUUUUU
             8cc            UUUUUUU
            ccc              UUUUUU
         cccc  8            UUUUUUU
8       cc   8 8       uuuUUUUUUUUU
 8     cc    8 8       uu UUUUUUUUU
  8   cc      8        u   UUUUUUUU
   8 cc       8       u     UUUUUUU
    cc         8      u     UUUUUUU
   cc           8     u     uUUUUUU
  cc             8    uu   uu  UUUU
ccc       888  88     uuu uuu    UU
cc 9999888   88      uuuuuu     8  
c  9f9         8    uuuu       8   
   999          88 uuu             
      9           uuuu             
       8         uuuu             
   8888 8        uuuu              
  8      8      uuuuu8             
        8      uuu    88           
       8     uuuuu      8         
        uuuuuuu          8         
       uuuu               8        
      uu uu              8 88   888
      uuuu            888    888 
     uuuu            8            
     uuu 8888       8              
    uuu      8      8              
    uu        8   88              
  uuu          888