C111123313121111121111331333133313331333132233133313121111331333132322222311   >>    C11112331312111112111133133313331333133313223313331312111133133313232222231   <<    C111123313121111121111331333133313331333132233133313121111331333132322222313   >>      C111123313121111121111331333133313331333132233133313121111331333132322222312   >>