________ $_$$$$$$$$$$$
_____$$$$$$$_________$
___$$$$$_____________$
___$_________________$
____$________________$$
____$$________________$
_____$________________$$
_____$$_______$$$____$$$
______$_____$$___$$_$___$
______$_____$$_____$____$
______$$____$______$$$$$$$
_______$____$$__$$$_____$$
______$$$$____$$$$_____$$
______$$$_______________$$
_______$$$______________$$
________$_____$$$$$$$$$$$
_______$$_______$$$$$
______$$$$$_____$
___$$$$__$$$$$$$$
__$$____$$_____$$
_$$_____$$______$$
$$______$$_______$$