#include <iostream>
#include <queue>
#include <map>
#include <set>
#include <cmath>
#include <cstring>
#include <algorithm>
#include <iomanip>
#include <stack>
#include <numeric>
#include <ctime>
#include <string>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
using namespace std;
using ll = long long;
const ll N = 1e6 + 5, mod = 1e9 + 7, inf = 0x3f3f3f3f;
int n;
void solve() {
cin >> n;
int ji = 0, ou = 0;
while (n--) {
int x;
cin >> x;
if (x % 2 == 0)ou++;
else ji++;
}
cout << (ji > 2 || (ji && ou > 1) ? "YES" : "NO") << '\n';
}
int main() {
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
int t = 1;
//cin>>t;
while (t--) {
solve();
}
return 0;
}