#include <bits/stdc++.h>

using namespace std;

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

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;
}