The reason for this meticulous acceptance (send from one to four people with the first 10 spots) is simple, and it has been many years since it was implemented, sometimes many have done bad things to get a quota or had the envy plan to get rid of a person who has been given the spot, for the special cases they use other measures for fear that something happens to them, they are anonymous until they arrive to the facilities of the University.
Due to the schemes of third parties towards those who have their spot within the 20 students, all these measures were done. Firstly, the students who during their last year in high school have high grades are kept secret.
Secondly, when the first 10 places are filled, they are given a link to access the website and fill out their confidentiality form, as well as the names of their 'chaperones' who are the people accompanied them inside the Campus.