#include <bits/stdc++.h>
using namespace std;
const long long int MOD = 1e9 + 7;
struct custom_hash {
  static uint64_t splitmix64(uint64_t x) {
    x += 0x9e3779b97f4a7c15;
    x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
    x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
    return x ^ (x >> 31);
  }
  size_t operator()(uint64_t x) const {
    static const uint64_t FIXED_RANDOM =
        chrono::steady_clock::now().time_since_epoch().count();
    return splitmix64(x + FIXED_RANDOM);
  }
};
int dx[] = {-1, 0, 1, 0};
int dy[] = {0, 1, 0, -1};
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    int od = 0;
    int num;
    for (int i = 0; i < n; i++) cin >> num, od += (num & 1);
    if (od & 1) {
      cout << "YES\n";
    } else {
      if ((od == 0) || (od == n))
        cout << "NO\n";
      else
        cout << "YES\n";
    }
  }
}
