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