#include <bits/stdc++.h>

using namespace std;

int digit_sum(int n)
{
     int num = n;
int sum = 0;
    while (num != 0)

    {

        sum = sum + num % 10;

        num = num / 10;

    }
    return sum;
}

string canConstruct(vector <int> a) {
    int sum = 0;
    bool flag = true;
    int l = a.size();
    for(int i=0;i<l;i++)
    {
        sum += digit_sum(a[i]);
    }
    if(sum%3 != 0) flag = false;
    if(flag) 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;
}