C31232233133313221211113313331333133313113311331333131133133331221   >>    C3123223313331322121111331333133313331311331133133313113313333122   <<    C31232233133313221211113313331333133313113311331333131133133331223   >>      C31232233133313221211113313331333133313113311331333131133133331222   >>