Happy Joy Joy!
http://icpc.baylor.edu/icpc/
plain_vanilla
(**)
?
the 7% solution
These are the reserved characters: !$%()*
!
This is a string whose length, before any encoding, is seventy-nine characters!
A weird test: %20%21%24%25%28%29%2a
A://Very/Boring/Test@[as-any-fool-can-plainly-see];It's_also_of_maximum_length.
! $$ %%% (((( ))))) ******
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