C31232233133313221211113313331333133313332321333131133132321333311   >>    C3123223313331322121111331333133313331333232133313113313232133331   <<    C31232233133313221211113313331333133313332321333131133132321333313   >>      C31232233133313221211113313331333133313332321333131133132321333312   >>