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