C111123313121111121111331333133313331322121111331333133313331333121111331122211   >>    C11112331312111112111133133313331333132212111133133313331333133312111133112221   <<    C111123313121111121111331333133313331322121111331333133313331333121111331122213   >>      C111123313121111121111331333133313331322121111331333133313331333121111331122212   >>