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



int main() {
    int t,sum;
    int arr[100];
    cin>>t;
    for(int i=0;i<t;i++)
    {
        int n;
        cin>>n;
        
         sum=0;
        for(int j=0;j<n;j++)
        {
            cin>>arr[i];
            if(arr[i]>9)
                while(arr[i]>0)
                {
                    sum+=arr[i]%10;
                    arr[i]/=10;
                }
            else
                sum+=arr[i];
        
    }
        if(sum%3==0)
            cout<<"Yes"<<endl;
            else cout<<"No"<<endl;
    }
    return 0;
}