C1311213331333132332133313331333133313121111331333133313331333132323112121   >>    C131121333133313233213331333133313331312111133133313331333133313232311212   <<    C1311213331333132332133313331333133313121111331333133313331333132323112123   >>      C1311213331333132332133313331333133313121111331333133313331333132323112122   >>