C111123313121111121111331333133313331331121111113313331333133313232223121   >>    C11112331312111112111133133313331333133112111111331333133313331323222312   <<    C111123313121111121111331333133313331331121111113313331333133313232223123   >>      C111123313121111121111331333133313331331121111113313331333133313232223122   >>