This is no Auchan. Deception for tourists. The prices are higher than in other small shops (we specially went to the store next to our hotel to compare). You've wasted your time. Don't look for low fixed prices here. An ordinary tent.
The prices are not high (that's why he is Auchan), it is quite possible to buy what you need. The seller and the cashier understand and speak Russian more or less. In general, an ordinary store. Souvenirs are not sold, only groceries, tanning products, deodorants, razors, toothpastes and brushes, beach accessories. Buy something you need.
Of course, this is not the same Auchan as in Russia, but it is also a good store with fixed prices, but if there is no change at the checkout, then you will not wait for it and if the product is a little more expensive, then you will not have to pay extra. These are their rules 🫤