C1311213331333132332133313331333133313331333133313331333133313333212331   >>    C131121333133313233213331333133313331333133313331333133313331333321233   <<    C1311213331333132332133313331333133313331333133313331333133313333212333   >>      C1311213331333132332133313331333133313331333133313331333133313333212332   >>