C111123313121111121111331333133313331323232133313331312113313223233213321   >>    C11112331312111112111133133313331333132323213331333131211331322323321332   <<    C111123313121111121111331333133313331323232133313331312113313223233213323   >>      C111123313121111121111331333133313331323232133313331312113313223233213322   >>