17:13 So, we are kind of, not just us, our competitors are kind of cautious in general for this year. We gave like 15% to [25%] [ph] increase in terms of volume for this year. And we did not give any earning forecast at this time, mainly it caused even though regulatory side it's – we believe it will be a quite stable situation in 2022, but from the economic size, it is quite uncertain, especially and the current right now is zero tolerance on COVID-19. 18:07 Right now, you know the biggest city in China, like Shanghai is right now in, like a total lockdown, and not just Shanghai, many, many cities in the COVID situation is quite spread among 27 Provinces, many, many city, it's a kind of [indiscernible] they are doing the test, COVID test every day, otherwise, you know… So, there's a supply situation and some industry affects a lot like the restaurant, travel, entertainment, all greatly affected a lot of people in those industry kind of in [further status] [ph]. You know, what I mean. 19:01 So, but those employees in those industry, I think is some kind of related to our business – they are the people we serve [indiscernible] market basically. You know, what I mean? So, we kind of are cautious, did not give – that’s the main reason we did not give earning at this time, but one thing we're pretty sure and we will be profitable substantially this year, but not, maybe not as big as much as last year, but we are, kind of reluctant to provide exactly figure at this time. Thank you.