C31232233133313221211113313331333133313113311331333133313331312313222321   >>    C3123223313331322121111331333133313331311331133133313331333131231322232   <<    C31232233133313221211113313331333133313113311331333133313331312313222323   >>      C31232233133313221211113313331333133313113311331333133313331312313222322   >>