Dear [name],
The admissions committee has carefully reviewed your application. After much consideration, it is with great regret that we must inform you we are unable to offer you a spot in the beta course.
The course was extremely popular and there was a large number of strong applicants; in light of this, we were unable to offer a spot to every worthy applicant.
We recognize that this letter may come as a disappointment to you. Nevertheless, we encourage you to continue practicing competitive programming and wish you the best of luck in your future programming competitions.
Lastly, we would like to thank you for the time and effort you took to submit your application. We encourage you to review the solutions to the pre-registration test and subscribe for future updates.