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pataiji/spaceindex.rb

Created March 9, 2016 10:12
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spaceindex.rb
ARGF.map(&:chomp).each{|z|b=z.split(' ');b[0]?(b[1]?(c=b[0].split(',');i=0;puts b[1].split('').inject(''){|s,w|s<<' 'if c.include?(i.to_s);i+=1;s<<w}):puts(b[0])):puts('')}
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