#include<stdio.h>
#include<iostream>
using namespace std;
int main()
{long t,n,a,sum;
    cin>>t;
    while(t--)
    {sum=0;
        cin>>n;
        while(n--)
        {
            cin>>a;
            while(a)
            {
                sum+=(a%10);
                a/=10;
            }
        }
        if(!(sum%3))
            cout<<"Yes\n";
        else 
            cout<<"No\n";
    }
}