1472B.cpp

#include<bits/stdc++.h>
using namespace std;

int main(){
  int t;
  cin>>t;
  int n, x;
  while(t--){
    cin>>n;
    int count1 = 0, count2 = 0;
    for(int i = 0; i < n; i++){
      cin>>x;
      if(x == 1){
        count1++;
        continue;
      }
      count2++;
    }
    if(count2 % 2 == 0 && count1 % 2 == 0){
      cout<<"YES"<<endl;
      continue;
    }
    if(count2 % 2 != 0 && count1 % 2 == 0 && count1 > 0){
      cout<<"YES"<<endl;
      continue;
    }
    cout<<"NO"<<endl;
  }
  return 0;
}