#include <iostream>

using namespace std;
int sum(int n)
{
    int s=0;
    while(n>0)
    {
        s+=(n%10);
        n/=10;
    }
    return s;
}
int main()
{
    int t,n,q;
    ios_base::sync_with_stdio(0);
    cin>>t;
    while(t--)
    {
        cin>>n;
        int ans=0;
        while(n--)
        {
            cin>>q;
            ans+=sum(q);
        }
        if(ans%3==0)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
    return 0;
}