C1311213331333132332133313331333133313331333133313331333131232232111113211211   >>    C131121333133313233213331333133313331333133313331333133313123223211111321121   <<    C1311213331333132332133313331333133313331333133313331333131232232111113211213   >>      C1311213331333132332133313331333133313331333133313331333131232232111113211212   >>