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