while 1: o=[];l=0 for c in raw_input():l-=c>"(";o+=" "*l+c+" "*9,;l+=c<")" for e in zip(*o): \x09f=`e`[2::5].rstrip() \x09if f:print f
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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