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