#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;
    while(t--)
    {
        int n;
        cin>>n;
        int s=0,x;
        while(n--)
        {
            scanf("%d",&x);
            while(x)
            {
                s=s+x%10;
                x/=10;
            }
        }
        if(s%3==0)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
    return 0;
}