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

int digit_sum(long long a){
    int sum=0;
    while(a){
        sum+=a%10;
        a/=10;
    }
    
    return sum;
}

int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    
    int t,n;
    long long a;
    cin>>t;
    while(t--){
        cin>>n;
        int sum=0;
        for(int i=0; i<n; i++){
            cin>>a;
            sum += digit_sum(a);
        }
        
        if(sum%3==0){
            cout<<"Yes"<<endl;
        }else{
            cout<<"No"<<endl;
        }
    }
    return 0;
}