C13112133313331323321333133313331333133313331333133313331333133311212233231   >>    C1311213331333132332133313331333133313331333133313331333133313331121223323   <<    C13112133313331323321333133313331333133313331333133313331333133311212233233   >>      C13112133313331323321333133313331333133313331333133313331333133311212233232   >>