#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n, s = 0;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    s += (a[i] > 0);
  }
  if (n == 3 && a[0] ^ a[1] == a[2]) {
    return cout << "Yes", 0;
  }
  if (n > 3 && s > 0) {
    return cout << "No", 0;
  }
  cout << "Yes";
}
