___________________$$$$$$$$$$$$$,.
_____________$$$$$$$$$$$$$$$$$$$$$$$$.
___________$$$___$$$$$$$$$$$$$$$$___$$b
_________$$$______$$$$$$$$$$$$$$______$$b.
_______$$$_________$$$$$$$$$$$$_________$$b
______$$$____________$$$$$$$$$____________$b,
_____$$$______________$$$$$$$______________$$.
____$$$________________$$$$$________________$$,
____$$______________________________________$$$
____$$_______________________________________$$
____$$$$$$$$$$$$$$$$$_________$$$$$$$$$$$$$$$$$
____$$$$$$$$$$$$$$$$$$_______$$$$$$$$$$$$$$$$$7
_____$$$$$$$$$$$$$$$$$_______$$$$$$$$$$$$$$$$$'
______$$$$$$$$$$$$$$$_________$$$$$$$$$$$$$$$'
_______$$$$$$$$$$$$$___________$$$$$$$$$$$$$'
________$$$$$$$$$$$_____________$$$$$$$$$$$'
__________$$$$$$$$_______________$$$$$$$$"
____________$$$$$_________________$$$$$"
_______________$$$$$$$_______$$$$$$$"'
___________________$$$$$$$$$$$$$"'

.....?