#include <bits/stdc++.h>

using namespace std;

int sod(int n)
{
    int ret = 0, temp;
    while (n != 0)
    { 
        temp = n % 10;
        n = n/10;
        ret += temp;
    }
    return ret;
}

string canConstruct(vector <int> a) {
    int sum = 0, i, num;
    for (i=0; i<a.size(); i++)
    {
        sum += sod(a[i]);
    }
    if (sum % 3 == 0) return "Yes";
    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;
}