#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 */   
    long int t,n,val;
    cin>>t;
    for(int i=1;i<=t;i++)
    {
        cin>>n;
        long int sum=0;
        for(int j=1;j<=n;j++)
        {
            cin>>val;
        while (val != 0)
        {
       sum = sum + val % 10;
       val = val/10;
        }
        }
        if(sum%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
     }    
    return 0;
}