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