C111123313121111121111331333133313331333133313331333133313331333113313121211   >>    C11112331312111112111133133313331333133313331333133313331333133311331312121   <<    C111123313121111121111331333133313331333133313331333133313331333113313121213   >>      C111123313121111121111331333133313331333133313331333133313331333113313121212   >>