You are viewing a single comment's thread. Return to all comments →
import re match = re.search(r'([A-Za-z0-9])\1', input()) print(match.group(1) if match else -1)
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 →
import re match = re.search(r'([A-Za-z0-9])\1', input()) print(match.group(1) if match else -1)