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

char* canConstruct(int a_size, int* a) {
    int i,j,k,s=0,sum=0;
    for(i=0;i<a_size;i++)
    {
        k=a[i];
        while(k!=0)
        {
            j=k%10;
            s=s+j;
            k=k/10;
        }
        sum=sum+s;
        s=0;
        
    }
    if(sum%3==0)
            return "Yes";
        else
            return "No";
    // Return "Yes" or "No" denoting whether you can construct the required number.
}

int main() {
    int t; 
    scanf("%i", &t);
    for(int a0 = 0; a0 < t; a0++){
        int n; 
        scanf("%i", &n);
        int *a = malloc(sizeof(int) * n);
        for (int a_i = 0; a_i < n; a_i++) {
           scanf("%i",&a[a_i]);
        }
        int result_size;
        char* result = canConstruct(n, a);
        printf("%s\n", result);
    }
    return 0;
}