The algorithm must use N (and M) as input parameters. N is the number of candidate stars and M is the subset length, which for this competition will always be 4. For the CSV file that has to be submitted, the output for N=20 and M=4 is to be used.
The code must produce the sequence within 1 second. The reference platform is the submissions server (kelvins.esa.int).
The submission needs to be a ZIP file with a size of 1 MB maximum containing exactly two files.
One file is the python code (ending with .py) which can be either Python 2 or 3.