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


int main() {
    int t;
    cin>>t;
    while(t--)
    {
        int n;
        cin>> n;
        int i,count=0,j;
        for(i=0;i<n;i++)
        {
            cin>>j;
            while(j>0)
            {
                count+=j%10;
                j=j/10;
            }
        }
    if(count%3==0)
        cout<<"Yes"<<"\n";
    else
        cout<<"No"<<"\n";
    }
    
    return 0;
}