C13223313311212111133133313331333131212111113331333131133132332332211   >>    C1322331331121211113313331333133313121211111333133313113313233233221   <<    C13223313311212111133133313331333131212111113331333131133132332332213   >>      C13223313311212111133133313331333131212111113331333131133132332332212   >>