#include <bits/stdc++.h>

using namespace std;
int sum(int n)
{
    int t=n;
    int s=0;
    while(n!=0)
    {
        int d=n%10;
        s+=d;
        n=n/10;
    }
    return s;
}
string canConstruct(int a[],int n) {
    // Return "Yes" or "No" denoting whether you can construct the required number.
    int sum1=0;
    for(int i=0;i<n;i++)
    {
        sum1+=sum(a[i]);
        
    }
    if(sum1%3==0)return  "Yes";
    else return "No";
}

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