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


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */ 
    int t,n,sum,x;
    cin>>t;
    while(t--) {
        cin>>n;
        sum=0;
        for(int i=0;i<n;i++) {
            cin>>x;
            while(x) {
                sum = sum+x%10;
                x/=10;
            }
        }
        if(sum%3)
            cout<<"No"<<endl;
        else
            cout<<"Yes"<<endl;
    }
    return 0;
}