I asked for water with gas. They brought me a small water, of 0.33l for 850 rubles (10 dollars). The most expensive water I bought in my life. This water is more expensive than wine and food. In the end they told me there is another water for only 300 rubles available. I asked "why didn't you bring the cheap water before"? Waitress said "I didn't see it" and went away. I wish I could give negative tip. So I went to the other restaurant next door and ordered food somewhere else.