C1111121111331311211331333133313331333133313221211113313331333232311   >>    C111112111133131121133133313331333133313331322121111331333133323231   <<    C1111121111331311211331333133313331333133313221211113313331333232313   >>      C1111121111331311211331333133313331333133313221211113313331333232312   >>