http://yuanpangestu.blogspot.com/

_____________$$$$$$$$$
____________$$$$$$$$$$$
____________$$$$$$$$$$$
____________$$$$$$$$$$$
... _____________$$$$$$$$$
_____$$$$$$_____$$$$$$$$$$
____$$$$$$$$__$$$$$$_____$$$
___$$$$$$$$$$$$$$$$_________$
___$$$$$$$$$$$$$$$$______$__$
___$$$$$$$$$$$$$$$$_____$$$_$
___$$$$$$$$$$$__________$$$_$_____$$
____$$$$$$$$$____________$$_$$$$_$$$$
______$$$__$$__$$$______________$$$$
___________$$____$_______________$
____________$$____$______________$
_____________$$___$$$__________$$
_______________$$$_$$$$$$_$$$$$
________________$$____$$_$$$$$
_______________$$$$$___$$$$$$$$$$
_______________$$$$$$$$$$$$$$$$$$$$
_______________$$_$$$$$$$$$$$$$$__$$
_______________$$__$$$$$$$$$$$___$_$
______________$$$__$___$$$______$$$$
______________$$$_$__________$$_$$$$
______________$$$$$_________$$$$_$_$
_______________$$$$__________$$$__$$
_____$$$$_________$________________$
___$$$___$$______$$$_____________$$
__$___$$__$$_____$__$$$_____$$__$$
_$$____$___$_____