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 ZZZZZZZ ZZZZ      TTTTTT   #    #  ZZZZZZ   
  ZZ   Z  ZZ           TT   #    #   ZZ  ZZ  
  ZZ      ZZ          TT    #    #   ZZ   ZZ 
  ZZZZZ   ZZ         TT     # ## #   ZZ   ZZ 
  ZZ      ZZ   Z    TT      # ## #   ZZ   ZZ 
  ZZ   Z  ZZ  ZZ   TT       ##  ##   ZZ  ZZ  
 ZZZZZZZ ZZZZZZZ   TTTTTT   #    #  ZZZZZZ
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