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


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