C1311213331333132332133313331333133313121111331333133313231133111   >>    C131121333133313233213331333133313331312111133133313331323113311   <<    C1311213331333132332133313331333133313121111331333133313231133113   >>      C1311213331333132332133313331333133313121111331333133313231133112   >>