__--~~~~~~~--__
_-~~-<===>-+-<===>-~~-_
/~~ _A_ ~-|_>A<_|-~ _A_ ~~\
/~ / H \ \ H / / H \ ~\
/~ _-|~>V<~|-_ ~V~ _-|~>V<~|-_ ~\
/+-<===>-+-<===>-+-<===>-+-<===>-+\
f_A_ ~-|_>A<_|-~ _A_ ~-|_>A<_|-~ _A_?
f/ H \ \ H / / H \ \ H / / H \?
|~>V<~|-_ ~V~ _-|~>V<~|-_ ~V~ _-|~>V<~|
|>-+-<===>-+-<===>-+-<===>-+-<===>-+-<|
|_>A<_|-~ _A_ ~-|_>A<_|-~ _A_ ~-|_>A<_|
t\ H / / H \ \ H / / H \ \ H /j
t~V~ _-|~>V<~|-_ ~V~ _-|~>V<~|-_ ~V~j
\+-<===>-+-<===>-+-<===>-+-<===>-+/ =W.L.=
\_ ~-|_>A<_|-~ _A_ ~-|_>A<_|-~ _/
\_ \ H / / H \ \ H / _/
\__ ~V~ _-|~>V<~|-_ ~V~ __/
~-__-<===>-+-<===>-__-~
~~--_______--~~
[===> [0] <===]