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