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