#include <bits/stdc++.h>

using namespace std;
int get_sum(int a){
    int sums = 0;
    while(a>0){
        sums += (a%10);
        a/=10;
    }
    return sums;
}

string canConstruct(vector <int> a) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    int sums = 0;
    for(int i=0;i<a.size();++i){
        sums += get_sum(a[i]);
    }
    return sums%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;
}