C111123313121111121111331333133313331333131233133313311231211113313221212111   >>    C11112331312111112111133133313331333133313123313331331123121111331322121211   <<    C111123313121111121111331333133313331333131233133313311231211113313221212113   >>      C111123313121111121111331333133313331333131233133313311231211113313221212112   >>