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


int main() {
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        int x,sum=0;
        cin>>x;
        int *p=new int[x];
        for(int j=0;j<x;j++)
        {
            cin>>p[j];
            while(p[j]>0)
            {
                int y=p[j]%10;
                p[j]/=10;
                sum+=y;
            }
        }
        if(sum%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    return 0;
}