C31232233133313221211113313331333133313331212111112111133121111122213233311   >>    C3123223313331322121111331333133313331333121211111211113312111112221323331   <<    C31232233133313221211113313331333133313331212111112111133121111122213233313   >>      C31232233133313221211113313331333133313331212111112111133121111122213233312   >>