C11112331312111112111133133313121111331121131211113313223313223331   >>    C1111233131211111211113313331312111133112113121111331322331322333   <<    C11112331312111112111133133313121111331121131211113313223313223333   >>      C11112331312111112111133133313121111331121131211113313223313223332   >>