using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Solution {

    static string canConstruct(int[] a) {
        // Return "Yes" or "No" denoting whether you can construct the required number.
        int No = 0,sum =0;
        for(int i = 0;i<a.Length;i++)
        {
            sum = sum+a[i];
        }
        while(sum>0)
        {
            No = No + sum % 10;
            sum = sum /10;
        }
        if(No%3 == 0)
        {
            return "Yes";
        }
        else
            return "No";
    }

    static void Main(String[] args) {
        int t = Convert.ToInt32(Console.ReadLine());
        for(int a0 = 0; a0 < t; a0++){
            int n = Convert.ToInt32(Console.ReadLine());
            string[] a_temp = Console.ReadLine().Split(' ');
            int[] a = Array.ConvertAll(a_temp,Int32.Parse);
            string result = canConstruct(a);
            Console.WriteLine(result);
        }
    }
}