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


int main() {
    long long int sum,tc,i,n,x;
    cin>>tc;
    while(tc--)
    {
        sum=0;
        cin>>n;
        for(i=0;i<n;i++)
        {
            cin>>x;
            while(x!=0)
            {
              sum=sum+x%10;
                x=x/10;
            }
        }
        if(sum%3==0)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
    return 0;
}