Input (grade 10): Longvilliers (until 1997 Longvillers) is a commune in the Pas-de-Calais department in the Nord-Pas-de-Calais region of France.
Output (grade 7): Longvilliers, Pas-de-Calais is a commune. It is found in the region Nord-Pas-de-Calais in the Pas-de-Calais department in the north of France.