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  1. import re
  2.  
  3. pattern = r"(S(?<!\S.).*?)\s*S(?<!\S.)"
  4. s = "Stack, Code and StackOverflow"
  5. m = re.search(pattern, s)
  6. if m:
  7. print(m.group(1))
Success #stdin #stdout 0.03s 9408KB
stdin
Standard input is empty
stdout
Stack, Code and