#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 n=0;
    for(int i=0;i<a_size;i++){
        while(a[i]>0){
            n+=a[i]%10;
            a[i]=a[i]/10;
        }            
    }
    if(n%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;
}