C13112133313331323321333133313331333133313331311331323221121133132323311211   >>    C1311213331333132332133313331333133313331333131133132322112113313232331121   <<    C13112133313331323321333133313331333133313331311331323221121133132323311213   >>      C13112133313331323321333133313331333133313331311331323221121133132323311212   >>