#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define LOG1(a)			  cerr<< #a << " = " << (a) << "\n"
#define LOG2(a, b)		  cerr<< #a << " = " << (a) << ", " << #b << " = " << (b) << "\n"
#define endl "\n"

typedef long long int ll;
typedef pair<int, int> pii;
typedef vector<pii> vii;
typedef vector<int> vi;

const ll INF = 1e18;
const int inf = 1e9;
const int MOD = 1e9 + 7;
const int nax = 1000000 + 10;

int n, arr[nax];
vi digi;
int main()
{
    ios::sync_with_stdio(0);
    int t;
    cin >> t;
    while(t--)
    {
        digi.clear();
        int sum = 0;
        cin >> n;
        for(int i = 1; i <= n; i++)
        {
        int num; cin >> num;
        while(num)
        {
            int dig = num % 10;
            digi.pb(dig);
            num /= 10;
            sum += dig;
        }
        }
        if(sum % 3 == 0)
        {
            cout << "Yes" << endl;
        }
        else cout << "No" << endl;
    }
    return 0;
}