#include <bits/stdc++.h>

using namespace std;
int digits(int x){
    int sum = 0;
    while(x){
        sum = sum + x%10;
        x = x/10;
    }
    return sum;
}
string canConstruct(vector <int> a) {
    long total = 0;
    for(int i = 0; i< a.size(); i++){
        
        total = total + digits(a[i]);
    }
    if(total%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;
}