C1311213331333132332133313331333133313121111331333133313233113311111   >>    C131121333133313233213331333133313331312111133133313331323311331111   <<    C1311213331333132332133313331333133313121111331333133313233113311113   >>      C1311213331333132332133313331333133313121111331333133313233113311112   >>