C13223313311212111133133313331333133313232233133313311211111211111122232311   >>    C1322331331121211113313331333133313331323223313331331121111121111112223231   <<    C13223313311212111133133313331333133313232233133313311211111211111122232313   >>      C13223313311212111133133313331333133313232233133313311211111211111122232312   >>