C1111121111331311211331333133313331333112211231211113313232232111133221   >>    C111112111133131121133133313331333133311221123121111331323223211113322   <<    C1111121111331311211331333133313331333112211231211113313232232111133223   >>      C1111121111331311211331333133313331333112211231211113313232232111133222   >>