C13112133313331323321333133313331333133313331321123231323223111   >>    C1311213331333132332133313331333133313331333132112323132322311   <<    C13112133313331323321333133313331333133313331321123231323223113   >>      C13112133313331323321333133313331333133313331321123231323223112   >>