C111123313121111121111331333133313331323232133313331333133313113313331123313211   >>    C11112331312111112111133133313331333132323213331333133313331311331333112331321   <<    C111123313121111121111331333133313331323232133313331333133313113313331123313213   >>      C111123313121111121111331333133313331323232133313331333133313113313331123313212   >>