Editorial for Swapping Numbers
Submitting an official solution before solving the problem yourself is a bannable offence.
This was a relatively simple problem mostly to make sure people understood IO and could read the question. All you had to do was read two integers in \(x\) and \(y\) and then output them in reverse order.
Almost everyone finished this question in less than 2 minutes, so we're going to leave this question alone and consider it to be relatively self explanatory.