#include <bits/stdc++.h>

using namespace std;

string canConstruct(vector <int> a) {
    int num,sum=0;
    while(!a.empty()){
        num = a.front();
        while(num != 0){
            sum = sum + (num%10);
            num = num/10;
        }
        a.erase(a.begin());
    }
    
    if(sum%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;
}