Input (grade 10): Sains-l Ã s-Marquion is a commune in the Pas-de-Calais department in the Nord-Pas-de-Calais region of France.
Output (grade 6): Sains-l Ã s-Marquion is a commune. It is found in the Nord-Pas-de-Calais region in the Pas-de-Calais department in the north of France.