C31232233133313221211113313331333133313331212111133121111133313331123233311   >>    C3123223313331322121111331333133313331333121211113312111113331333112323331   <<    C31232233133313221211113313331333133313331212111133121111133313331123233313   >>      C31232233133313221211113313331333133313331212111133121111133313331123233312   >>