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