#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 sum = 0;
    // Return "Yes" or "No" denoting whether you can construct the required number.
    //printf("%d %d",a_size, *a);
    for(int i=0; i<a_size; i++){
        sum  = sum + *a/10 + *a%10;
    }
    //printf("Sum is %d",sum);
    if(sum % 3 == 0)
    return "Yes";
    else 
        return "No";
    
}

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;
}