C31232233133313221211113313331311331333133313331311331333133313123111   >>    C3123223313331322121111331333131133133313331333131133133313331312311   <<    C31232233133313221211113313331311331333133313331311331333133313123113   >>      C31232233133313221211113313331311331333133313331311331333133313123112   >>