code golf meetup 2025 by code golf meetup 2025

import re
print(re.sub(r"(.?)(.?)\1",r'\1\2\2',open(0).read()))

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

To protect the system from spam, please input your favorite sport (hint: I believe its name must start with 'g', case insensitive)

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