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