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