cf 1472B

#include<stdio.h>

int main()
{
    int t;
    scanf("%d", &t);

    while(t--)
    {
        int n;
        scanf("%d", &n);
        int a[n], i;
        for(i = 0; i < n; i++) scanf("%d", &a[i]);

        int c1 = 0, c2 = 0;
        for(i = 0; i < n; i++)
        {
            if(a[i] == 1) c1++;
            else if(a[i] == 2) c2++;
        }
        if(c1 % 2 != 0) printf("NO\n");
        else if(c2 % 2 != 0 && c1 == 0) printf("NO\n");
        else printf("YES\n");
    }
}