C111123313121111121111331333133313331333133313331333133312111133132223223311   >>    C11112331312111112111133133313331333133313331333133313331211113313222322331   <<    C111123313121111121111331333133313331333133313331333133312111133132223223313   >>      C111123313121111121111331333133313331333133313331333133312111133132223223312   >>