#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;
}