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