C31232233133313221211113313331333133313311211231211113313113313223331311321231   >>    C3123223313331322121111331333133313331331121123121111331311331322333131132123   <<    C31232233133313221211113313331333133313311211231211113313113313223331311321233   >>      C31232233133313221211113313331333133313311211231211113313113313223331311321232   >>