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