C13112133313331323321333133313331333133313331333133313331323112331323233121   >>    C1311213331333132332133313331333133313331333133313331333132311233132323312   <<    C13112133313331323321333133313331333133313331333133313331323112331323233123   >>      C13112133313331323321333133313331333133313331333133313331323112331323233122   >>