#include <bits/stdc++.h>
using namespace std;
ifstream fin("input.txt");
ofstream fout("output.txt");
int main() {
  int calls;
  cin >> calls;
  int N;
  int a;
  bool even, odd;
  for (int call = 0; call < calls; call++) {
    cin >> N;
    even = false;
    odd = false;
    for (int i = 0; i < N; i++) {
      cin >> a;
      if (a % 2 == 0) {
        even = true;
      } else {
        odd = true;
      }
    }
    if (even == true && odd == false) {
      cout << "NO" << endl;
    } else if (even == false && odd == true && (N % 2) == 0) {
      cout << "NO" << endl;
    } else if (even == false && odd == true && (N % 2) == 1) {
      cout << "YES" << endl;
    } else if (even == true && odd == true) {
      cout << "YES" << endl;
    }
  }
}
