C1311213331333132332133313331333133313331333131333131121333133311111   >>    C131121333133313233213331333133313331333133313133313112133313331111   <<    C1311213331333132332133313331333133313331333131333131121333133311113   >>      C1311213331333132332133313331333133313331333131333131121333133311112   >>