C111123313121111121111331333133313331333133313331333133313331311331313232111   >>    C11112331312111112111133133313331333133313331333133313331333131133131323211   <<    C111123313121111121111331333133313331333133313331333133313331311331313232113   >>      C111123313121111121111331333133313331333133313331333133313331311331313232112   >>