#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;
        long sum=0;
        for(int i=0;i<n;i++)
        {
            int num;
            cin>>num;
            while(num)
            {
                sum+=(num%10);
                num=num/10;
            }
        }
        if(sum%3)
            cout<<"No"<<endl;
        else cout<<"Yes"<<endl;
    }
    return 0;
}