Why the output {8, 9, 7} not {7, 8, 9} ?

Question

In line 7
https://code.sololearn.com/c8215BTOn2AJ/?ref=app

Answer 1

Sets, like dictionaries, are *unordered* collections with unique elements. When printed, the order is random and irrelevant.

Answer 2

oh get it, good explanation, thank you for your answer :D