#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>

int t;
int n;
int arr[101];
long sumdigits(long k)
{
    long sum=0;
    while(k!=0)
    {
       sum+=(k%10);
        k/=10;
    }
    return sum;
}
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    cin>>t;
    while(t--)
    {
      cin>>n;
        int x;
        long sum=0;
        for(int i=0;i<n;i++)
        {
            cin>>x;
            sum+=sumdigits(x);
}
        cout<<((sum%3==0)?"Yes":"No")<<endl;
    }
    return 0;
}