#include <bits/stdc++.h>

using namespace std;
int conv(int a){
    int ans = 0;
    if(a/10 == 0){
        ans =  a;
    }else{
        int sum = 0;
        while(a != 0){
            sum = sum + a%10;
            a = a/10;
        }
        ans = sum;
    }
    return ans;
    
}
string canConstruct(vector <int> a) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    int size = a.size();
    int sum = 0;
    for(int i = 0;i < size;i++){
        sum = sum + conv(a[i]);
    }
    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;
}