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