C1311213331333132332133313331333133313331333132313233113313331313233311   >>    C131121333133313233213331333133313331333133313231323311331333131323331   <<    C1311213331333132332133313331333133313331333132313233113313331313233313   >>      C1311213331333132332133313331333133313331333132313233113313331313233312   >>