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