C111123313121111121111331333133313331333131233133313331312111133132323121   >>    C11112331312111112111133133313331333133313123313331333131211113313232312   <<    C111123313121111121111331333133313331333131233133313331312111133132323123   >>      C111123313121111121111331333133313331333131233133313331312111133132323122   >>