#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int a[n + 1];
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
  }
  a[0] = 0;
  sort(a, a + n);
  a[0] = a[n];
  string ans = "Yes";
  for (int i = 1; i < n; i++) {
    if ((a[i - 1] ^ a[i + 1]) ^ a[i]) {
      ans = "No";
      break;
    }
  }
  cout << ans << endl;
  return 0;
}
