_$$$$$$$________$$__$$____$$__$$$$$$$$_
_$____$_________$$__$$$___$$_______$$__
_____$__________$$__$$$$__$$______$$___
____$___________$$__$$_$$_$$_____$$____
___$______$$____$$__$$__$$$$____$$_____
___$______$$____$$__$$___$$$___$$______
___$_______$$$$$$___$$____$$__$$$$$$$$_