#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int sum(int n)
{
    int s=0;
    while(n)
    {
        s+= n%10;
        n=n/10;
    }
    return s;
}

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