C1311213331333132332133313331333133313121111331333133313331333131211111312231   >>    C131121333133313233213331333133313331312111133133313331333133313121111131223   <<    C1311213331333132332133313331333133313121111331333133313331333131211111312233   >>      C1311213331333132332133313331333133313121111331333133313331333131211111312232   >>