#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
#define ll long long int


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