C1111121111331311211331333133313331333112211231211113322232233131   >>    C111112111133131121133133313331333133311221123121111332223223313   <<    C1111121111331311211331333133313331333112211231211113322232233133   >>      C1111121111331311211331333133313331333112211231211113322232233132   >>