C1111121111331311211331333133313331333132221123232233131232313223331   >>    C111112111133131121133133313331333133313222112323223313123231322333   <<    C1111121111331311211331333133313331333132221123232233131232313223333   >>      C1111121111331311211331333133313331333132221123232233131232313223332   >>