C31232233133313221211113313331333133313331212111133132223233311   >>    C3123223313331322121111331333133313331333121211113313222323331   <<    C31232233133313221211113313331333133313331212111133132223233313   >>      C31232233133313221211113313331333133313331212111133132223233312   >>