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ZZZZ ZZZ          ZZZZZZ     ZZZ      TTTT   
 ZZ   Z            ZZ  ZZ    ZZZ     TT  TT  
 ZZ   Z   ##  ##   ZZ  ZZ    Z ZZ    TT  TT  
 ZZ   Z   ## ##    ZZZZZ    Z  ZZ    TT  TT  
  ZZ Z    ####     ZZ ZZ   ZZZZZZZ   TT  TT  
  ZZ Z    ####     ZZ  ZZ  Z    ZZ   TT  TT  
   ZZ     ## ##   ZZZZ ZZZ ZZ   ZZZ   TTTT   
          ##  ##
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