#include <iostream>
#include <cstring>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <vector>
#include <list>
#include <utility>
#include <iterator>
#include <map>
#include <stack>
#include <queue>
#include <set>
#include <deque>
#include <bitset>
#include <complex>
#include <iomanip>
#include <random>

using namespace std;

#define pb push_back
#define f first
#define s second
#define mp make_pair
#define SZ(x) ((int)(x.size()))
#define FOI(i, a, n) for(int i = int(a); i <= int(n); i++)
#define FOD(i, a, n) for(int i = int(a); i >= int(n); i--)
#define IN(x, y) ((y).find(x) != (y).end())
#define sync ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);

typedef long long ll;
typedef long double lf;
typedef pair < int, ll > ii;

const int NMAX = 1e6+4;
const int MOD = 1e9 + 7;


int main()
{
    sync
    int t;
    cin>>t;
    while(t--)
    {
        int n;
        cin>>n;
        int cn=0;
        FOI(i,1,n)
        {
            int a;
            cin>>a;
            while(a!=0)
            {
                cn+=a%10;
                a/=10;
            }
        }
        if(cn%3==0)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
}