C111123313121111121111331333133313331323232133313331312113313331233122311   >>    C11112331312111112111133133313331333132323213331333131211331333123312231   <<    C111123313121111121111331333133313331323232133313331312113313331233122313   >>      C111123313121111121111331333133313331323232133313331312113313331233122312   >>