#include <bits/stdc++.h>

using namespace std;

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

int main() {
   int t; cin>>t;
    while(t--)
    {
        int n; cin>>n;
        int ans =0;
        while(n--)
        {
            int a; cin>>a;
            ans += sum(a);
        }
        if(ans%3==0)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
    return 0;
}