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  1. puts "abc123.-def45".gsub(/(.)./, '\1@')
Success #stdin #stdout 0.02s 7408KB
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Standard input is empty
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a@c@2@.@d@f@5
https://ideone.com/KUfeV5
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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