C111123313121111121111331333133313331333131233133313233213223331   >>    C11112331312111112111133133313331333133313123313331323321322333   <<    C111123313121111121111331333133313331333131233133313233213223333   >>      C111123313121111121111331333133313331333131233133313233213223332   >>