C21231322221311331311211312111133132313223313331322331311331333131211113322331   >>    C2123132222131133131121131211113313231322331333132233131133133313121111332233   <<    C21231322221311331311211312111133132313223313331322331311331333131211113322333   >>      C21231322221311331311211312111133132313223313331322331311331333131211113322332   >>