#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */  
    int t,l;
    cin >> t;
    for(l=0;l<t;l++)
    {
        long long int n,i,j,count=0;
        cin >> n;
        for(i=0;i<n;i++)
        {
            long long int a;
            cin >> a;
            while(a>0)
            {
                count = count + a%10;
                a=a/10;
            }
        }
        if(count%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    return 0;
}