35:15 Yes. So, I'll take the first one. So, from the pricing, gross margin perspective, first, I'll just start off and say, we're super proud of our ability to expand gross margins by sixty basis points in Q4, and ten basis points for the full year, just given this supply chain environment out there right now. Second, we saw the inflation coming. We priced very aggressively to manage that inflation and feel really good about execution of that by our sales force. 35:48 Commodities are not slowing down. To be frank, we thought, when we took the price increase, we might see some leveling off especially in our second half of the year, we're not seeing that yet. We're still hopeful we're going to see that, but some commodities are slowing down, some are still growing at accelerated rates. So, right now, we feel good about the guidance we've given. 36:12 We don't feel like we need to do any additional pricing if we do, see some modest increase in our cost assumptions. I think we can manage that through trade expense, I'm pulling back there a little bit. But if we see an acceleration beyond what our expectations are, all levers are in play, we will price that we have to. 36:37 Regarding the SG&A leverage, I would say there's two reasons why we're getting so much leverage right now. One is, the Quest integration and the synergies that we got from that. Obviously we reduced some headcount with the combined company. We’ve got some great synergies that we've executed almost fully at this point. So, that has helped. 36:58 Second, is just the growth in the business, when you're growing ten percent, fifteen percent, twenty percent top line, you can, and G and A is only growing maybe four percent or five percent, you get some significant leverage. So, I don't see us pulling back on absolute dollars in G and A. But I think we'll continue to get leverage in our P and L as the business accelerates. 37:23 Got it. That sounds great.