______$$$_$$$____$
___$$$$$_$$_______$
_$$$__$$___________$
$$_$$_______________$
_$___________________$
__$__________________$$$
___$___________$$$$$$___$$
____$________$$_____$_____$
_____$______$________$_$$_$
______$_____$__$$____$__$$$$
_______$_____$_______$______$
______$$$_____$$$$$$$___$$$$
______$__$_________________$
_______$$$___$$$$$$$________$
_________$__$$_$____$$$$$$$$
_________$__$$__$$$$$$
_________$__$$$____$$
________$$_____$$$$$
________$_________$
______$$$$$$$$$$$$$$
____$$$$$$$$$$$$$$$$$$$$$
____$$$$$$$$$$$$$$$$$$$$$$
___$$$$$$$$$$$$$$$____$___$
____$$_____$$$$$$$$$___$___$
_____$$_____$$$_____$$$$___$
______$$_______$$$$________$
________$_________$_______$
_________$$$$$$$$$$$$$$$$$