C13112133313331323321333133313331333133313331311331333121111132221123111   >>    C1311213331333132332133313331333133313331333131133133312111113222112311   <<    C13112133313331323321333133313331333133313331311331333121111132221123113   >>      C13112133313331323321333133313331333133313331311331333121111132221123112   >>