C13223313311212111133133313331333131212111113331333133313113313232312311   >>    C1322331331121211113313331333133313121211111333133313331311331323231231   <<    C13223313311212111133133313331333131212111113331333133313113313232312313   >>      C13223313311212111133133313331333131212111113331333133313113313232312312   >>