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