A

#include <bits/stdc++.h>

using namespace std;

#define ll     long long
#define _test   int _TEST; cin>>_TEST; while(_TEST--)
#define pb     push_back

int main()
{
    _test
    {
        int n;
        cin>>n;

        vector<int> a(n);
        for(auto &e: a)
            cin>>e;

        int cntOdd = 0;

        for(auto e: a)
            cntOdd += (e%2);

        if(cntOdd%2)cout<<"NO\n";
        else        cout<<"YES\n";
    }
}