import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    static String canConstruct(int a) {
        // Return "Yes" or "No" denoting whether you can construct the required number.
        if (a % 3 == 0) {
            return "Yes";
        }
        return "No";
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int t = in.nextInt();
        for(int a0 = 0; a0 < t; a0++){
            int n = in.nextInt();
            //int[] a = new int[n];
            int sum = 0;
            for(int a_i = 0; a_i < n; a_i++){
                int input = in.nextInt();
                while (input > 0) {
                    sum += input % 10;
                    input = input / 10;
                }
            }
            String result = canConstruct(sum);
            System.out.println(result);
        }
        in.close();
    }
}