When saving, enter the following:
 
 TT   TT           #    #    ZZZZ            
 TTT TTT           ##  ##   ZZ  ZZ           
 TTTTTTT  ##  ##   # ## #  ZZ    ZZ  ##  ##  
 TT T TT   ####    # ## #  ZZ    ZZ  ## ##   
 TT   TT    ##     #    #  ZZ    ZZ  ####    
 TT   TT   ####    #    #   ZZ  ZZ   ####    
 TT   TT  ##  ##   #    #    ZZZZ    ## ##   
          ##  ##            Z  ZZZZ  ##  ##
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