C111123313121111121111331333133313331323232133313331333133313113121212111   >>    C11112331312111112111133133313331333132323213331333133313331311312121211   <<    C111123313121111121111331333133313331323232133313331333133313113121212113   >>      C111123313121111121111331333133313331323232133313331333133313113121212112   >>