#include <bits/stdc++.h>

using namespace std;
typedef long long  ll;
ll ds(ll n)
{
    ll res=0;
    while(n)
    {
        res+=n%10;
        n/=10;
        
    }
    return res;
}
string canConstruct(vector <ll> a) {
    
    ll res=0;
    for(auto x:a)
    {
        res+=ds(x);
        
    }
    if(res%3==0)
            return "Yes";
    else
            return "No";
    
}

int main() {
    int t;
    cin >> t;
    for(int a0 = 0; a0 < t; a0++){
        int n;
        cin >> n;
        vector<ll> a(n);
        for(int a_i = 0; a_i < n; a_i++){
           cin >> a[a_i];
        }
        string result = canConstruct(a);
        cout << result << endl;
    }
    return 0;
}