#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    int a;
    cin>>a;
    while(a--)
    {
        int b;
        cin>>b;
        int count=0;int inp;
        for(int i=0;i<b;i++)
        {
            cin>>inp;
            if(inp<=9)
            count=count+inp;
            else if(inp>9)
            {
                int dummy;
                while(inp!=0)
                {
                    dummy=inp%10;
                    inp=inp/10;
                    count=count+dummy;
                }
            }
        }
        if((count%3)==0)
        {
            cout<<"Yes"<<endl;
        }
        else
        {
            cout<<"No"<<endl;
        }
        
    }
    return 0;
}