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


int main() {
    int t,i;
    cin>>t;
    for(i=0;i<t;i++)
    {
        int n;
        cin>>n;
        long int a[n],n1,s=0;
        for(int j=0;j<n;j++)
        {
            cin>>a[j];
            n1=a[j];
            while(n1>9)
            {
                s=s+(n1%10);
                n1=n1/10;
            }
            s=s+n1;
        }
        if(s%3==0)
            cout<<"Yes";
        else
            cout<<"No";
        cout<<endl;
    }
    return 0;
}