#include <bits/stdc++.h>

using namespace std;

string canConstruct(vector <int> a) {
   long long sum = 0;
    for(int i = 0; i < a.size(); i++)
    {
        while(a[i])
        {
            sum+= a[i]%10;
            a[i]/=10;
        }
    }
    return (sum%3 == 0)? "Yes":"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;
}