C31232233133313221211113313331333133313113311331333133313113311211331121121   >>    C3123223313331322121111331333133313331311331133133313331311331121133112112   <<    C31232233133313221211113313331333133313113311331333133313113311211331121123   >>      C31232233133313221211113313331333133313113311331333133313113311211331121122   >>