C31232233133313221211113313331333133313113311331333133313113231311331   >>    C3123223313331322121111331333133313331311331133133313331311323131133   <<    C31232233133313221211113313331333133313113311331333133313113231311333   >>      C31232233133313221211113313331333133313113311331333133313113231311332   >>