#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;
    while(t--)
    {
        int n;
        cin>>n;
        vector<int>a(n);
        int i;
        int sum=0,dig;
        for(i=0;i<n;i++)
        {
            cin>>a[i];
            while(a[i]!=0)
            {
                dig=a[i]%10;
                a[i]/=10;
                sum+=dig;
            }
        }
        if(sum%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    return 0;
}