<prompt> Translate the following text to EnglishKwa upande mwingine wa mto, wafanyabiashara 250 wamekusanyika katika Louvre des Antiquaires, karibu na Palais-Royal, imefungwa Jumatatu na Jumapili mnamo Julai na Agosti, na wafanyabiashara wengine wa vitu vya kale wametawanyika karibu na Les Halles.  <response>: Across the river, 250 dealers are concentrated in the Louvre des Antiquaires, by the place du Palais-Royal, closed Monday and Sunday in July and August, and other antiques dealers are scattered around Les Halles. 