C21231322221311331311211312111133132313223313331322133313223332331   >>    C2123132222131133131121131211113313231322331333132213331322333233   <<    C21231322221311331311211312111133132313223313331322133313223332333   >>      C21231322221311331311211312111133132313223313331322133313223332332   >>