#include <bits/stdc++.h>

using namespace std;
typedef vector<int> vi;
string canConstruct(vector <int> a) {
    string sol = "No";
    int ans = 0;
    for (auto i : a) {
      while(i){
        ans += i%10;
        i /= 10;
      }
    }
    if(!(ans%3)) sol = "Yes";
    return sol;
}

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;
}