#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int getSum(int n)
{ 
   int sum = 0;
   while (n != 0)
   {
       sum = sum + n % 10;
       n = n/10;
   }
   return sum;
}

int main() {
    int t; 
    scanf("%d", &t);
    while(t--)
    {
        int sum=0,n,a[200],i; 
        
        scanf("%d", &n);
        for (int i = 0; i < n; i++) {
           scanf("%d",&a[i]);
        }
        for(i=0;i<n;i++)
        {
            sum=sum+getSum(a[i]);
        }
        if(sum%3==0)
            printf("Yes\n");
        else
            printf("No\n");
    }
    return 0;
}