I found an exchange bot in which the rate is lower than now (it seems they did not have time to update).
1. Go to the bot @ btc_chang3_bot (t.me/btc_chang3_bot) 2. Press the button "Обмен BTC", then "Купить" 3. We buy the required amount at the rate of 1 BTC = 753022 rubles. 4. Withdraw to your BTC address 5. We sell BTC through any other exchanger at a rate higher than in the bot 6. We calculate the profit (buy 0.1 BTC for 75.302 rubles and sell for 82.990 + commission = net plus 6.000 rubles) The larger the liner, the greater the exhaust. I earned 60.758 rubles for 4 transactions