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  1. import re
  2. s="ZAp0ZuZAuX0AZA"
  3. for m in re.finditer(r'(?<!0)([A-Z]).*?(?<!0)\1', s):
  4. print(m.group())
Success #stdin #stdout 0.01s 27728KB
stdin
Standard input is empty
stdout
ZAp0ZuZ
AuX0AZA