C111123313121111121111331333133313331333131233133313121111121111112233111   >>    C11112331312111112111133133313331333133313123313331312111112111111223311   <<    C111123313121111121111331333133313331333131233133313121111121111112233113   >>      C111123313121111121111331333133313331333131233133313121111121111112233112   >>