C1111121111331311211331333133313331333112211231211113313232213112221311   >>    C111112111133131121133133313331333133311221123121111331323221311222131   <<    C1111121111331311211331333133313331333112211231211113313232213112221313   >>      C1111121111331311211331333133313331333112211231211113313232213112221312   >>