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

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