#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 ts,n,a,Ans=0;
    cin>>ts;
    while(ts--){
        cin>>n;
        Ans=0;
        for(int i=0;i<n;i++){
            cin>>a;
            while(a>0){
                Ans+=(a%10);
                a/=10;
            }
        }
        if(Ans%3==0) cout<<"Yes"<<endl;
        else cout<<"No"<<endl;
    }
    return 0;
}