C1311213331333132332133313331333133313331311331333133313121233131   >>    C131121333133313233213331333133313331333131133133313331312123313   <<    C1311213331333132332133313331333133313331311331333133313121233133   >>      C1311213331333132332133313331333133313331311331333133313121233132   >>