C111123313121111121111331333133313331333133313121111331331121111121133132223321   >>    C11112331312111112111133133313331333133313331312111133133112111112113313222332   <<    C111123313121111121111331333133313331333133313121111331331121111121133132223323   >>      C111123313121111121111331333133313331333133313121111331331121111121133132223322   >>