____$$$___________$$__$$____$$__$$_____$$_
___$$_$$__________$$__$$___$$___$$_____$$_
__$$___$$_________$$__$$__$$____$$_____$$_
_$$_____$$________$$__$$$$$_____$$_____$$_
_$$$$$$$$$__$$____$$__$$__$$____$$_____$$_
_$$_____$$__$$____$$__$$___$$___$$_____$$_
_$$_____$$___$$$$$$___$$____$$___$$$$$$$__