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  1. str = "\bNewqaz\b\b\b car!!!\b\b\b."
  2. puts str.gsub(/\x08/, "B")
  3. loop do 
  4.   str = str.gsub(Regexp.new("^\b+|[^\b]\b"), "")
  5.   break if !str.include?("\b")
  6. end 
  7. puts str
Success #stdin #stdout 0.01s 7420KB
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BNewqazBBB car!!!BBB.
New car.
https://ideone.com/CkwFBO
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
secret

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