#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 n;
    cin>>n;
    for(int i=0;i<n;i++){
        int t,s=0;
        cin>>t;
        for(int j=0;j<t;j++){
            long a;
            cin>>a;
            while(a!=0){
                int k=a%10;
                a=a/10;
                s+=k;
            }    
        }
        if(s%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    
    return 0;
}