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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