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