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

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;
}