#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t;
    cin>>t;
    while(t--) {
        int n;
        cin>>n;
        int sum=0;
        for(int i=0;i<n;i++) {
            int x;
            cin>>x;
            int s=0;
            while(x!=0) {
                s=s+x%10;
                x=x/10;
            }
            sum=sum+s;
        }
        
        if(sum%3==0) {
            cout<<"Yes\n";
        } else {
            cout<<"No\n";
        }
    }
    return 0;
}