Please take a look at my 2838950 submission. You can see that I check the Hint assumption, and, if it doesn't check, I output an "x\n", otherwise I output the correct answer.

As it turns out, I get WA14 when I make the check and Accepted when I don't (submission 2838929). Thus, test 14 doesn't meet the hint assumption.

Please remove the hint assuption from the problem statement or fix test#14.

Thank you.