#include<bits/stdc++.h>
using namespace std;
int cal(int n)
{
    int ans=0;
    while(n)
    {
        ans+=n%10;
        n/=10;
    }
    return ans;
}      
int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        int n,sum=0;
        cin>>n;
        int a[n];
        for(int i=1;i<=n;i++)
        {
            cin>>a[i];
            sum+=cal(a[i]);
        }
        if(sum%3==0)
            cout<<"Yes"<<endl;
        else
            cout<<"No"<<endl;
    }
    return 0;
}