_$________$$$$$$$$___$$_____$$__$$____$$_
_$____$___$$_____$$__$$_____$$___$$__$$__
_$____$___$$_____$$__$$_____$$____$$$$___
_$____$___$$$$$$$$___$$_____$$_____$$____
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______$___$$____$$_____$$_$$_______$$____
______$___$$_____$$_____$$$________$$____