C1111121111331311211331333133313331322133313331311331333132233122311   >>    C111112111133131121133133313331333132213331333131133133313223312231   <<    C1111121111331311211331333133313331322133313331311331333132233122313   >>      C1111121111331311211331333133313331322133313331311331333132233122312   >>