C31232233133313221211113313331333133313311211231211113313113313223331311321   >>    C3123223313331322121111331333133313331331121123121111331311331322333131132   <<    C31232233133313221211113313331333133313311211231211113313113313223331311323   >>      C31232233133313221211113313331333133313311211231211113313113313223331311322   >>