#include <bits/stdc++.h>
using namespace std;
int main() {
  int N;
  cin >> N;
  if (N % 3 != 0) {
    cout << "No" << endl;
    return 0;
  }
  map<int, int> m;
  for (int i = 0; i < N; i++) {
    int a;
    cin >> a;
    m[a]++;
  }
  string ans;
  if (m.size() == 1) {
    ans = (m[0] == N) ? "Yes" : "No";
  } else if (m.size() == 2) {
    bool isOk = true;
    for (auto p : m) {
      if (p.first == 0) {
        if (p.second != N / 3) isOk = false;
      } else {
        if (p.second != 2 * N / 3) isOk = false;
      }
    }
    ans = (isOk) ? "Yes" : "No";
  } else if (m.size() == 3) {
    bool isOk = true;
    int tmp = 0;
    for (auto p : m) {
      if (p.second != N / 3) isOk = false;
      tmp ^= p.first;
    }
    if (tmp != 0) isOk = false;
    ans = (isOk) ? "Yes" : "No";
  }
  cout << ans << endl;
}
