#include <bits/stdc++.h>
using namespace std;
void read(int &x) {
  x = 0;
  int f = 1;
  char ch = getchar();
  for (; !isdigit(ch); ch = getchar())
    if (ch == '-') f = -f;
  for (; isdigit(ch); ch = getchar()) x = x * 10 + ch - '0';
  x *= f;
}
void print(int x) {
  if (x < 0) putchar('-'), x = -x;
  if (!x) return;
  print(x / 10), putchar(x % 10 + 48);
}
void write(int x) {
  if (!x)
    putchar('0');
  else
    print(x);
  putchar('\n');
}
const int maxn = 1e6 + 10;
const int inf = 1e9;
const double eps = 1e-8;
const int mod = 1e9 + 7;
map<int, int> t;
int n;
int main() {
  read(n);
  for (int i = 1, x; i <= n; i++) read(x), t[x]++;
  if (t.size() > 3) return puts("No"), 0;
  if (t.size() == 3) {
    if (n % 3 != 0) return puts("No"), 0;
    int res = 0;
    for (map<int, int>::iterator i = t.begin(); i != t.end(); i++) {
      res ^= i->first;
      if (i->second != n / 3) return puts("No"), 0;
    }
    if (res != 0) return puts("No"), 0;
  } else if (t.size() == 2) {
    if (n % 3 != 0) return puts("No"), 0;
    if (t.begin()->first != 0) return puts("No"), 0;
  }
  puts("Yes");
  return 0;
}
