quote box by tabasa

a=%q/"'{[:\$%`#.@?*-/\x0d
x=[]\x0d
15.times{|i|x<<(b=a[0..i])+b[-1..-1]*(46-2*i)+b.reverse}\x0d
puts x[0..-2],x.reverse

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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