/*
 #daffodildiku
  anything can happen anyday..
  No one is invincible and no one is non-replacable..
  */
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define rp(i,b) for(i=0;i<b;i++)
#define rpi(i,a,b) for(i=a;i<b;i++)
#define ST(x) sort(x.begin(),x.end())
#define RST(X) sort(x.rbegin(),x.rend())


ll sum(ll a)
{
	ll k=0;
	while(a)
	{
		k+=a%10;
		a/=10;
	}
	return k;
}
int main()
{
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	ll t;cin>>t;
	while(t--)
	{
		ll n,k=0;cin>>n;ll a;
		for(int i=0;i<n;++i)
			{
				cin>>a;
				k+=sum(a);
			}
			if(k%3==0)
				cout<<"Yes";
			else
				cout<<"No";
			cout<<endl;
	}
	
    return 0;
}