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  1. import re
  2. s = '1'*15
  3. result = re.finditer(r'(?=(11111))', s)
  4.  
  5. for i in result:
  6. print(i.start(1), i.end(1))
Success #stdin #stdout 0s 23352KB
stdin
Standard input is empty
stdout
(0, 5)
(1, 6)
(2, 7)
(3, 8)
(4, 9)
(5, 10)
(6, 11)
(7, 12)
(8, 13)
(9, 14)
(10, 15)