C1111121111331311211331333133313331333131211331333133313221333121   >>    C111112111133131121133133313331333133313121133133313331322133312   <<    C1111121111331311211331333133313331333131211331333133313221333123   >>      C1111121111331311211331333133313331333131211331333133313221333122   >>