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