Brian, I think your line was coming in and out, but my -- I guess your question is about cost, I mean particularly variable costs versus fixed costs, in our -- okay. So I think as I mentioned before, obviously, the key cost structure for us is largely variable cost is the wall input and paper and packaging for our products. And so we have a hybrid model, obviously, we have full-time workers and then we also have a large part-time workforce that on a more flexible scheduling basis. In terms of O&O, as you mentioned, the rent, a big part of a large percentage of the rent, 80% of that have a variable component to it. And in terms of dollar side, it is probably -- depending on the sales, obviously, use is wearable. So a number of times, maybe 40%, 50% of that, above 50% or so at this time, about it's wearable for rent. And then we also have, obviously, marketing expenditure and all that reflects around that. So your overall cost structure, I think it was fair to say that majority of our cost are flexible wearable. But we also have a very large portion of them is fixed, including our G&A expenses. For example, salary for our headquarter staff, local operations and then the fixed cost in the rental. So sales leveraging revenue is real for our business and as we have mentioned over and over again. So -- but we -- as we mentioned before, we're doing a lot of things to control costs in the near term, but also looking into longer-term structure. For example, like G&A and in the short term may be impacted by sales leveraging and deleveraging. And then -- but in the long term, our goals would keep G&A growth to be below sales growth, for example. So that's overall how our things will go out. We'll use technology improve our deposits and store format, et cetera, to make sure that in the long haul, our labor productivity is in a good trend. So thank you, Brian>