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