You are viewing a single comment's thread. Return to all comments →
import re print((lambda m: m.group(1) if m else -1)(re.search(r"([a-zA-Z0-9])\1", input())))``
Seems like cookies are disabled on this browser, please enable them to open this website
Group(), Groups() & Groupdict()
You are viewing a single comment's thread. Return to all comments →