C31232233133313221211113313331333133313332321333131133132322223311   >>    C3123223313331322121111331333133313331333232133313113313232222331   <<    C31232233133313221211113313331333133313332321333131133132322223313   >>      C31232233133313221211113313331333133313332321333131133132322223312   >>