C31232233133313221211113313331333133313331212111113331313231311331333131133231   >>    C3123223313331322121111331333133313331333121211111333131323131133133313113323   <<    C31232233133313221211113313331333133313331212111113331313231311331333131133233   >>      C31232233133313221211113313331333133313331212111113331313231311331333131133232   >>