C1311213331333132332133313331333133313331333132313331311223112111   >>    C131121333133313233213331333133313331333133313231333131122311211   <<    C1311213331333132332133313331333133313331333132313331311223112113   >>      C1311213331333132332133313331333133313331333132313331311223112112   >>