C111123313121111121111331333133313331331121111113313331333133313331333121323311   >>    C11112331312111112111133133313331333133112111111331333133313331333133312132331   <<    C111123313121111121111331333133313331331121111113313331333133313331333121323313   >>      C111123313121111121111331333133313331331121111113313331333133313331333121323312   >>