C1311213331333132332133313331333133313331323331333133313331311312131   >>    C131121333133313233213331333133313331333132333133313331333131131213   <<    C1311213331333132332133313331333133313331323331333133313331311312133   >>      C1311213331333132332133313331333133313331323331333133313331311312132   >>