#include <bits/stdc++.h>

using namespace std;

int findsum(int p){
    int fool=0;
    while(p!=0){
        int goo = p%10;
        fool = fool+goo;
        p=p/10;
    }
    return fool;
}


string canConstruct(vector <int> a) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    string result1 = "Yes";
    string result2 = "No";
    int sum=0;
    
    for(int i=0;i<a.size();i++){
       int t = findsum(a[i]);
        sum = sum + t;
    }
    
    if(sum%3==0){return result1;}else{return result2;}
}

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;
}