#include <bits/stdc++.h>

using namespace std;

string canConstruct(vector <int> a) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    int i=0, mod, sum=0;
    vector <int> v;
    while (i!=a.size()){
            while(a[i]!=0){
                    mod=a[i]%10;
                    v.push_back(mod);
                    a[i]= a[i]/10;
            }
            i++;
    }
    i=0;
    while(i!=v.size()){
            sum= sum+ v[i];
            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;
}