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