Find the districts in which there are both shops selling less than 3000 products and shops selling more than 10000 products.
SELECT district FROM shop WHERE Number_products  <  3000 INTERSECT SELECT district FROM shop WHERE Number_products  >  10000
SELECT district FROM shop WHERE Number_products  <  3000 INTERSECT SELECT district FROM shop WHERE Number_products  >  10000
[{'Nenhum': 'Nenhum resultado encontrado'}]