#include <bits/stdc++.h>

using namespace std;
typedef long long Int;

int main()
{
    #ifdef DEBUG
        freopen("in.txt","r",stdin);
    #endif

    int t;
    cin >> t;
    while(t--)
    {
        int n;
        cin >> n;
        Int sum = 0;
        while(n--)
        {
            Int x;
            cin >> x;
            while(x)
            {
                sum += x%10;
                x /= 10;
            }
        }
        if(sum % 3 == 0)
            cout << "Yes\n";
        else
            cout << "No\n";
    }

    return 0;
}