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