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


int main() {
   int t,n,k;
    unsigned a,s;
    cin>>t;
    while(t--)
    {
        cin>>n;
       s=0;
        for(int i=0;i<n;i++)
        {
           cin>>a;
            while(a>0)
            {
                k=a%10;
                a=a/10;
                s=s+k;
             //   cout<<k<<" "<<a<<endl;
            }
        }
        if(s%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    return 0;
}