#include <bits/stdc++.h>

using namespace std;
int getSum(int n)
{ 
   int sum = 0;
   while (n != 0)
   {
       sum = sum + n % 10;
       n = n/10;
   }
   return sum;
}
string canConstruct(vector <int> a) {
        int sum=0;
        for(int i=0;i<a.size();i++)
            sum+=getSum(a[i]);
        if(sum%3==0)
            return "Yes";
        else
            return "No";
}

int main() {
    int t;
    cin >> t;
    for(int a0 = 0; a0 < t; a0++){
        int n;
        cin >> n;
        vector<int> a(n);
        for(int a_i = 0; a_i < n; a_i++){
           cin >> a[a_i];
        }
        string result = canConstruct(a);
        cout << result << endl;
    }
    return 0;
}