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



int main() {
    int t;
    cin>>t;
    while(t--)
  
    {
        int ans=0;
        int x;
        int n;
        cin>>n;
        for(int i=0;i<n;i++)
        {
            cin>>x;
            while(x!=0)
            {
                int temp=x%10;
                ans+=temp;
                x=x/10;
            }
        }
        if(ans%3==0)
        {
            cout<<"Yes"<<endl;
        }
        else
        {
            cout<<"No"<<endl;
        }
    }
        /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    return 0;
}