Thank you, Yang Guang. Thank you, Jensen. Thank you for your question. As a successful rollout of the cost control plan, we actually - we have two consecutive quarters, effective cost control and profitability enhancement. Compared with quarter three, our total operating costs and expenses further reduced significantly this quarter, and quarter-over-quarter declined 47.5% in total costs and expenses was mainly due to first, a decrease of 69.2% saving in marketing expense, and the second is 33.5% decrease in operating costs quarter-over-quarter. In terms of our marketing expense, if we look at our earnings release in previous quarters, let me explain [ph] that, our sales and marketing expenses in quarter two exceeded RMB1.2 billion, of which about 80% was traffic acquisition cost. In quarter three, sales and marketing expenses was around RMB781 million of which around 68% was our traffic acquisition cost. So we can see that the various measures of our refined operation have produced certain results in quarter three. But with our continuous efforts, we have achieved more remarkable results in the first quarter. Sales and marketing expenses significantly reduced to RMB241 million, and only less than one third of sales and marketing expenses were incurred for traffic acquisition. Regarding measures to control company expenses, in terms of sales and marketing expenses, our [indiscernible] limited to first further reduction in marketing expenditure and stricter criteria to select traffic acquisition platforms. And second, we're also leveraging our AI powered platform to come back to more intelligence and targeted marketing. And in terms of operating costs, specific measures include, firstly, reviewing key task and our business procedures to identify where and how to optimize. And the second, integrating organizational functions with higher synergies. And third, strengthening the control over selection of suppliers. And the fourth, measuring certain officers who are moving to areas with more reasonable rents. So we are moving faster on the right track to achieve breakeven. And we have delivered good results towards particular objective for the two consecutive quarters. We originally plan to procure in terms of this year - in 2023, we have already increased our efforts to control costs and expenses and now we're already made profits in non-GAAP terms in quarter four. Marketing expenses, which used to be our largest expense item have been significantly reduced in the third and fourth quarter. And we also managed to control over costs and company wide. So going forward, we expect this trend to continue in year 2022. So our goal is that our established business will make profits for the full year of 2022 on a non-GAAP basis. Thank you.