Thank you, Charles. In 2016, Sogou strengthened our competitive position by differentiating our products and developing AI powered innovative applications. We were able to maintain healthy business growth as traffic and revenue share trend is higher. By year-end, aggregate search traffic grew 30% from a year ago with mobile search traffic up 70%. The user base of Sogou mobile keyboard expanded over 50% from a year ago, solidifying its position as the number three mobile app in China, in terms of daily active users. Financially, despite regulatory challenges facing the search industry triggered by a healthcare incident, Sogou managed to post healthy revenue growth. Total revenues in 2016 were RMB4.4 billion, up 19% from 2015. Even considering the ramp-up of expenses in R&D and marketing, we delivered sizeable profit, excluding the impact of certain onetime items, net income reach RMB614 million. In 2016, we launched and upgraded a series of virtual channels, including English, Academic and Wise Doctor, or Healthcare channel. These new services helped us expand us from competing products. In the fourth quarter, Sogou English search service was upgraded and renamed as Soguo Overseas. This is the first across language search engine globally that uses our proprietary machine translation technology. With it, users can input queries in Chinese and immediately get search results from English online sources along with the corresponding Chinese translation. During past year, we had AI as a core part of our long-term strategy. We dedicated massive resources to the area, and saw some solid progress, which significantly enhanced the voice and image capabilities of Sogou mobile keyboard as a number one mobile app for voice input in China. Sogou mobile keyboard voice input feature is now being used over 200 million times a day, more than double from a year ago. While we consistently refined our products, we have been also aggressively promoting our brand. Compared to a year ago, the Sogou brand is now better recognized and respected from users and business partners. In the fourth quarter, we launched a nationwide online and offline marketing campaign in 25-cities and received a broad and positive response from users. We also debuted Sogou's all new AI robot Wangzai which on February the 6th defeated human players in a popular question-and-answer TV show, as the difficulty level in this game for robots were even higher than any previous human computer content our success demonstrated Sogou's strong capabilities in AI spaces such as natural interaction and machine intelligence. Lastly, in terms of financial performance, total revenues for the fourth quarter reached $172 million, up 4% year-on-year. Exceeding our prior guidance in RMB terms revenues for the fourth quarter increased 11% year-on-year, continuously outpacing the industry growth. Mobile search revenue accounted for two-thirds of total search revenue. Non-GAAP net income was $21 million compared with $31.5 million a year ago. I would now like to turn the call over to our acting CFO, Joanna, who will walk you through the Group’s financial results.