#include<iostream>
using namespace std;
int main()
{
    int test;
    int n,a,sum;
    cin>>test;
    int i;
    int j;
    for(i = 0; i < test; i++){
        cin>>n;
        sum = 0;
        for(j = 0; j < n; j++){
            cin>>a;
            while(a != 0){
                sum += a % 10;
                a = a / 10;
            }
        }
        if(sum % 3 == 0){
            cout<<"Yes"<<endl;
        }
        else{
            cout<<"No"<<endl;
        }
    }
    return 0;
}