Probability

In a tournament, a team plays 10 matches with probabilities of winning and losing each match as \(\frac{1}{3}\) and \(\frac{2}{3}\) respectively. Let \(x\) be the number of matches that the team wins, and $y$ be the number of matches that team loses. If the probability \(\mathrm{P}(|x-y| \leq 2)\) is \(p\), then \(3^9 p\) equals _________.