C1311213331333132332133313331333133313331333131133132313331322131122213121   >>    C131121333133313233213331333133313331333133313113313231333132213112221312   <<    C1311213331333132332133313331333133313331333131133132313331322131122213123   >>      C1311213331333132332133313331333133313331333131133132313331322131122213122   >>