#include <bits/stdc++.h>
using namespace std;
const int MOD = 1000000007;
struct Edge {
  int to;
  int weight;
  Edge(int t, int w) : to(t), weight(w) {}
};
int main() {
  int N;
  cin >> N;
  vector<int> a(N);
  int odd = 0;
  int even = 0;
  for (int i = 0; i < N; ++i) {
    cin >> a[i];
    if (a[i] % 2 != 0)
      odd++;
    else
      even++;
  }
  if (even == N - 1)
    cout << "No" << endl;
  else
    cout << "Yes" << endl;
  return 0;
}
