#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>
int count(int n) {
    int val = 0;
    while(n>0) {
        val += n%10;
        n /= 10;
    }
    return val;
}
char* canConstruct(int a_size, int* a) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    char * ch = (char*)malloc(3);
    int val = 0;
    for(int i=0; i<a_size; i++) {
        val = (val+count(a[i]))%3;
    }
    if(val%3 == 0)
        ch = "Yes";
    else
        ch = "No";
    return ch;
}

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;
}