C111123313121111121111331333133313331331121111113313331333133313231333132222311   >>    C11112331312111112111133133313331333133112111111331333133313331323133313222231   <<    C111123313121111121111331333133313331331121111113313331333133313231333132222313   >>      C111123313121111121111331333133313331331121111113313331333133313231333132222312   >>