#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
long int sum(long int p)
{
    long int sum=0;
    while(p)
    {
        sum=sum+p%10;
        p/=10;
    }
    return sum;
}

int main() {
    int t;
    cin>>t;
    long int i,n,sum1=0,p;
    while(t--)
    {
       cin>>n;
        sum1=0;
        while(n--)
        {
            cin>>p;
            sum1+=sum(p);
        }
        if(sum1%3==0)
            cout<<"Yes\n";
        else cout<<"No\n";
    }
    return 0;
}