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

public class Solution {

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

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int t = in.nextInt();
        int sum=0;
        int[] sumr=new int[t];
        for(int a0 = 0; a0 < t; a0++){
            int n = in.nextInt();
            int[] a = new int[n];
            sum=0;
            for(int a_i = 0; a_i < n; a_i++){
                a[a_i] = in.nextInt();
                if(a[a_i]<10)
                    sum=sum+a[a_i];
                 if(a[a_i]>=10 && a[a_i]<100)
                 {
                     sum=sum+a[a_i]%10;
                     sum=sum+((a[a_i])/10)%10;
                 }
                 if(a[a_i]==100)
                 {
                     sum=sum+a[a_i]%10;
                     sum=sum+((a[a_i])/10)%10;
                     sum=sum+((a[a_i])/100)%10;
                 }
                
                
            }
            
             
                 sumr[a0]=sum;
        
            
            
            String result = canConstruct(sumr[a0]);
            System.out.println(result);
        }
        in.close();
    }
}