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

long  dgtsum(long n)
{
    long rem=0;
    while(n!=0)
    {
        rem+=n%10;
        n/=10;
    }
      return rem;  
}
int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n;
    cin>>n;
    while(n--)
    {
        int m;
        cin>>m;
        long sum=0;
        while(m--)
        {
            long  k;
            cin>>k;
            sum+=dgtsum(k);
        }
        if(sum%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    return 0;
}