Hello, this is Nick. Please be reminded that all amounts quoted here will be in RMB. Please also refer to our earnings release for detailed information of our comparative financial performance on a year-over-year basis. Total revenues during the quarter were RMB390.6 million, up 20.1% year-over-year and in line with our guidance. The increase was primarily due to the increase in revenues generated by So-Young Prime and the sales of cosmetic injectables. Information services and other revenues were RMB268.1 million, up 15.8% year-over-year, primarily due to an increase in revenues generated by So-Young Prime. Reservation services revenues decreased 20.7% year-over-year to RMB20.6 million, primarily due to the operating strategy which gave higher subsidies to end users. Sales of medical products and maintenance service revenues were RMB101.9 million, up 50.6% year-over-year, primarily due to an increase in sales of cosmetic injectables. Cost of revenues were RMB137.6 million, up 56.0% year-over-year. The increase was primarily due to an increase in costs associated with the So-Young Prime and the sales of cosmetic injectables. Within cost of revenues, cost of services and others were RMB94.1 million, up 73.6% year-over-year, primarily due to an increase in costs associated with So-Young Prime. Cost of medical products sold and maintenance services were RMB43.6 million, up 28.1% year-over-year, primarily due to an increase in costs associated with sales of cosmetic injectables. Total operating expenses were RMB257.8 million, up 21.3% year-over-year. Sales and marketing expenses were RMB126.2 million, up 28.3% year-over-year, primarily due to an increase in payroll costs and the expenses associated with branding and user acquisition activities. G&A expenses were RMB86.7 million, up 18.4% year-over-year, primarily due to an increase in payroll costs associated with the expansion of administrative employees to support our business upgrade and new strategic businesses. R&D expenses were RMB45.0 million, up 9.6% year-over-year, primarily attributable to an increase in payroll costs. Income tax benefits were RMB10.8 million which was primarily due to the impact of additional deductions for research and development expenditures, compared with income tax benefits of RMB2.4 million in the fourth quarter of 2022. Net income attributable to So-Young was RMB17.5 million compared with a net income of RMB31.3 million during the same period last year. Non-GAAP net income attributable to So-Young was RMB35.3 million compared with RMB38.8 million non-GAAP net income attributable to So-Young in the same period of 2022. Basic and diluted earnings per ADS attributable to ordinary shareholders were RMB0.18 and RMB0.18, respectively, compared with basic and diluted earnings per ADS attributable to ordinary shareholders of RMB0.29 and RMB0.29, respectively, during the same period of 2022. For the full year 2023, total revenue were RMB1.5 billion, up 19.1% year-over-year. Within total revenues, information services and other revenues were RMB1.1 billion, up 22.2% year-over-year. Reservation services revenues were RMB101.3 million, down 21.3% year-over-year. Sales of medical products and maintenance services revenues were RMB333.5 million, up 28.7% year-over-year. Cost of revenues were RMB544.3 million, up 38.4% year-over-year, primarily due to an increase in costs associated with So-Young Prime and the sales of cosmetic injectables. Total operating expenses were RMB1.0 billion, up 4.9% year-over-year. Net income attributable to So-Young International Inc. were RMB21.3 million compared with net loss of RMB65.6 million in the fiscal year 2022. Non-GAAP net income attributable to So-Young International Inc. was RMB57.6 million compared to a net loss of RMB22.2 million in the fiscal year 2022. Basic and diluted earnings for ADS attributable to ordinary shareholders were RMB0.21 and RMB0.21, respectively, compared with basic and diluted losses per ADS attributable to ordinary shareholders of RMB0.61 and RMB0.61, respectively, in fiscal year 2022. We have ample cash on hand with a total cash and cash equivalent, restricted cash and term deposits, term deposits and short-term investments of RMB1.3 billion as of December 31, 2023, compared with RMB1.6 billion as of December 31, 2022. The decrease was primarily due to share repurchases of RMB125.6 million in 2023 and RMB111.3 million increase in terms deposits with maturities longer than 1 year. I'd like to reiterate that our new businesses are currently in a critical phase of development as we support them in their early stages of growth. They are critical pieces to the foundation we are building for future growth and recognize that we are just at the start of this journey. We, however, are extremely confident that they will increasingly contribute to revenue growth in the quarters ahead. With this in mind, for the first quarter of 2024, we expect total revenues to be between RMB290 million and RMB310 million. The above outlook is based on the current market conditions that reflects the company's preliminary estimates of market and operating conditions and the customer demand. This concludes our key remarks. I will now turn the call to the operator and open the call for QA. Operator, we are ready to take questions. Thank you.