C111123313121111121111331333133313331333131233133313121111332132211   >>    C11112331312111112111133133313331333133313123313331312111133213221   <<    C111123313121111121111331333133313331333131233133313121111332132213   >>      C111123313121111121111331333133313331333131233133313121111332132212   >>