C13112133313331323321333133313331333133313331333133313331333133311221123231231   >>    C1311213331333132332133313331333133313331333133313331333133313331122112323123   <<    C13112133313331323321333133313331333133313331333133313331333133311221123231233   >>      C13112133313331323321333133313331333133313331333133313331333133311221123231232   >>