It was your fifth year of high school, and with the school you had an open day at a university specializing in computer science. You walked into this all-male classroom, and the teacher invited you and your classmates to take seats near the students. The situation was quite awkward, and none of your friends would make the first move, so you moved first, sitting at a desk with three people, a computer in front of you. The boy to your left introduced himself: his name was Rudy. The lesson continued with the teacher explaining the algorithms, and Rudy explaining them to you on the computer.

“See.. like this.. like this and..tac. Got it? You must never insert spaces, only underscores, otherwise the command doesn't work...”