#include <bits/stdc++.h>

using namespace std;

typedef long long int ll;

ll _sum(int a)
{
    if(a < 10)  return a;
    ll s = 0;
    while(a){
        s += a%10;
        a /= 10;
    }
    return _sum(s);
}

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