Thank you, Daniil and thank you all for joining our first quarter earnings call today. You have seen the press release with all our three financial numbers, so I won’t be repeating them, instead let me focus in the performance and current trends across our business. Search and Portal. Search and Portal delivered solid results despite tough comps and the COVID-19 impact starting from mid-March. Revenue ex-TAC increased 14% while adjusted EBITDA margin came to 48.7%, up 130 basis points year-over-year. Given the strictly enforced lockdown policies across the country and its impact on business activity. Our ex-TAC Search and Portal revenues decline in April is in the high teens territory on a month-to-day basis. This was driven by a combination of factors such as decrease in ad budgets, pressure on CPC dynamics and lower share of commercial search queries. Importantly, our search queries in April are growing at fastest pace in five years and clicks growth is accelerating. Dynamic of ex-TAC Search revenue in the last several days has recovered to a high single-digit decline. Sector wise, IT and Telecom, food and grocery delivery, healthcare and home and garden have performed relatively better while travel apparel, real estate and auto are under more pressure. That said, I want to discuss a few things. First of all, declines clearly driven by external factors which are largely outside of our control. Before COVID, our Jan and Feb revenue growth on an ex-TAC basis was in the high teens territory. Secondly, our main goal now is to grow our market share and user base, so that when the economy rebounds we can convert into revenue growth and our progress here is impressive, especially with the younger audience. Overall, the revenue dynamic for the full-year will depend duration and severity of lockdown measures and the economic impact as well as the speed of the recovery, all of which are hard to predict at this stage. A couple of words about the cost structure of our Search and Portal business. The fixed costs account for around half of the total cash costs in the Search and Portal segment where personnel is the largest component. The variable part includes TAC and cost of sales. Moving to Taxi, Taxi revenues increased by 50% year-on-year, primarily driven by 40% growth in the number of rides, continued optimization of incentives and the ride-hailing business as well as the rapid development of FoodTech services. We have managed to expand our adjusted EBITDA margin excluding self driving cars to 7.6% on the back of improving profitability and ride-hailing offset by our investments in Moscow and the overall weakness that we saw in late March. In ride-hailing variable costs represent approximately two-thirds of our total costs including incentives, while the remaining part is fixed and consists of personnel costs, rent, certain advertising and marketing as well as other operational expenses. We see opportunities to optimize costs including advertising and marketing, supply acquisition costs and certain overheads. In Yandex.Eats, we saw further improvement in the unit economics primarily as a result of increased density of orders. We have continued investment in Lavka while being mindful of the impact of this business on total taxi EBITDA. Turning to other businesses. Media Services demonstrated very strong revenue growth of 95% year-on-year with improved adjusted EBITDA margin both in our year-over-year and quarter-over-quarter basis. In Q1 subscription based revenues of Media Services grew 152% year-on-year and we see strong trends continue in April. We are investing in the business as planned and are focusing from the retention of new users. Our Classifieds revenue increased 35% in Q1, the growth in the first two months was very strong. However, we saw materials slow down in late March after all auto dealerships were ordered to close, which obviously has a very meaningful impact on this business unit. While the pressure on classifieds revenue continued in April, the traffic in our platform remains solid. We see the formation of deferred demand, which we are planning to monetize as soon as the business activity starts to rebound. Finally, onto other bets and experiments. Our revenue is almost doubled year-over-year driven by the growth of Yandex.Drive, Geo and Zen. Yandex.Drive Cloud and Geo were also the key drivers of our adjusted EBITDA loss of RUB1.9 billion. As Tigran mentioned, Zen continues to perform strongly in April, while our car sharing business has taken a hit, especially after car sharing services were suspended in Moscow and St. Petersburg on April, 13th. With Yandex.Drive, we are now focusing on optimizing our lease agreements and the size of the fleet in order to reduce the burn rate. Guidance. Given a difficulty in predicting how long the pandemic will persist, and certainty about its effects in the economy and our businesses, we are unable at this time to reliably quantify the impact of the COVID-19 outbreak on our future financial results. As such, we are withdrawing our 2020 guidance, which we provided on February 14, 2020. Now, what are we doing to mitigate the COVID-19 impacts in our performance? We developed various stress tests that help us to define priorities. And these priorities include investments and businesses with increased activity and higher social importance in the current environment as well as strategic projects to strengthen the Company's position in the long-term. After on-boarding around 1300 new employees in 2019, and another 233 people in Q1 2020, we have decided to slowdown the pace of hiring, given the current circumstances. Partially this is because of the difficulties of integrating and training new people while we all work remotely. But we also want to ensure that we are appropriately sized when coming into 2021. That being said, we may continue adding headcount in certain limited strategic areas and look for opportunities to redeploy our personnel resources to support in-demand functions, and our strategic priorities. We have also made the decision to forfeit cash bonuses for top management in 2020. On top of that, top management has accepted a voluntary pay cut. We are cutting non-essential marketing expenses, and exercising rigorous control of our overheads. We believe these initiatives will help us to reduce the adverse impact of the pandemic and the macro headwinds on our 2020 EBITDA. In conclusion, I wanted to remind you that our balance sheet is strong. We currently have 2.5 billion in cash, including 390 million on the taxi balance sheet. More than two-thirds of this cash is in U.S. dollars. All of our debt is long-term and matures in 2025. We are confident that our strong liquidity position will help us to withstand the challenge of the current situation, while also providing us with flexibility to continue investing into long-term strategic projects. With this, I'm turning the mike to the operator for the Q&A session.