#include <bits/stdc++.h>
using namespace std;
#define x first
#define y second
#define dbg(x) cout << #x << '=' << x << '\n';
#define ll long long
#define pi pair<int,int>
#define pl pair<ll,ll>
#define pd pair<double,double>
#define ld long double
#define pld pair<ld,ld>
#define lg length()
#define sz size()
#define pb push_back
#define MAXN 100005
#define INF 1000000005
#define LINF 1000000000000000005
#define x1 xdddddddddddddddddd
#define y1 ydddddddddddddddddd

int t,n,a[105],s;

int32_t main(){
    ios_base :: sync_with_stdio(0); cin.tie(); cout.tie();
    cin >> t;
    for(int i=1;i<=t;i++){
        s=0; cin >> n;
        for(int i=1;i<=n;i++){
            cin >> a[i];
            while(a[i]) s+=a[i]%10,a[i]/=10;
        }
        if(s%3) cout << "No\n";
        else cout << "Yes\n";
    }
}