C31232233133313221211113313331333133313332321333131133132322311   >>    C3123223313331322121111331333133313331333232133313113313232231   <<    C31232233133313221211113313331333133313332321333131133132322313   >>      C31232233133313221211113313331333133313332321333131133132322312   >>