C31232233133313221211113313331333133313113311331333133321233321   >>    C3123223313331322121111331333133313331311331133133313332123332   <<    C31232233133313221211113313331333133313113311331333133321233323   >>      C31232233133313221211113313331333133313113311331333133321233322   >>