#include <bits/stdc++.h>

using namespace std;

long int canConstruct(long a[1000]) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    long int b[10000],i,j=0,c=0,r;
    for(i=0;i<=100;i++)
    {
        do
        {
            b[j]=a[i]%10;
            j++;
            a[i]=a[i]/10;
        }while(a[i]!=0);
        
    }
    for(i=0;i<=j;i++)
    {
        c=c+b[i];
    }    
    if(c%3==0)
    {
     r=1;
    }
    else
    {
       r=0;
    }
    return(r);
}

int main() {
    int t;
    long int r, a[1000];
    cin >> t;
    for(int a0 = 0; a0 < t; a0++){
        int n;
        cin >> n;
         
        for(int a_i = 0; a_i < n; a_i++){
           cin >> a[a_i];
        }
         r = canConstruct(a);
        if(r==1)
        cout <<"Yes" << endl;
        else
            cout<<"No"<<endl;
    }
    return 0;
}