C1311213331333132332133313331333133313331333131133133312111112313223213331   >>    C131121333133313233213331333133313331333133313113313331211111231322321333   <<    C1311213331333132332133313331333133313331333131133133312111112313223213333   >>      C1311213331333132332133313331333133313331333131133133312111112313223213332   >>