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

    static string canConstruct(int[] a) {
        
        var sum = 0l; 
        foreach(var val in a)
        {
            var strRep = val.ToString();
            foreach(var c in strRep)
            {
                sum += int.Parse(c.ToString());
            }
        }
        
        return sum % 3 == 0 ? "Yes" : "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);
        }
    }
}