#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 */   
    long long int t,n,i,x,d,s=0;
    cin>>t;
    while(t--)
    {
        s=0;
        cin>>n;
        for(i=0; i<n; i++)
        {
            cin>>x;
            while(x>0)
            {
                d=x%10;
                s=s+d;
                x=x/10;
            }
        }
        if(s%3==0)
        {
            cout<<"Yes"<<endl;
        }
        else
        {
            cout<<"No"<<endl;
        }
    }
    return 0;
}