 Well, thank you very much. As a rector of Universidad Politécnica de Madrid, I would like to welcome you, everybody, to our university, and particularly to our School of Industrial Engineers. And given the fact that I will come back to you after the end of the session, and given the fact that the dean of this school is here, I would like to invite him to provide all of you the welcome remarks. Please, Professor García Suarez, Oscar, dear Oscar, is your first use. Thank you very much, dear rector, dear minister of energy at Chile, dear professor Sack. Welcome, everyone, to this School of Industrial Engineering and to our University of Universidad Politécnica de Madrid. We are, I should say that we are very glad of hosting this important conference here. And to be honest, of course, one month ago we didn't know we are going to organize this here. So it has been a very tough work, but we are here. So thank you to all of you, to all the attendees for being here. And in particular, I should give thank you to a few people that make this possible. I will give their names now because I should do it. First one is Ruth Carrasco. Ruth is a professor here in this school. She is doing a very nice job. Carlos Matais. Carlos, where are you? Thank you, Carlos, for all your support. Alberto Garrido, vice-director. You're doing a pretty great job as well. So I hope you will be here for 1.5 days. I hope you find everything in their position. So if you need anything else, please let us know. In addition to that, I should say that I have to thank you, all our staff, because in other case, it would not be possible. And all of the volunteers that we have in this school. So hopefully you have a very nice conference today. And this is all. Thank you very much.