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