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  1. # your code goes here
  2. import re
  3.  
  4. print(re.sub(r'\b{4, }', '-', 'a-b-c-d-e'))
  5. print(re.sub(r'\b{4, }', '-', 'a-b-xyzc-d-e'))
  6. print(re.sub(r'\b{4, }', '-', 'aBe'))
Success #stdin #stdout 0.02s 9496KB
stdin
Standard input is empty
stdout
a-b-c-d-e
a-b-xyzc-d-e
aBe