#include "bits/stdc++.h"
using namespace std;

#define INIT ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define _CRT_SECURE_NO_WARINGS
#define ALL(obj) (obj).begin(),(obj).end()
#define SORT(obj) sort(ALL(obj))
#define rep(i,n) for(int i = 0; i < (n); ++i)

#define coutALL(x) for(auto i=x.begin();i!=--x.end();i++)cout<<*i<<" ";cout<<*--x.end()<<endl;

const int INF = 1e9;
const int MOD = 1e9 + 7;
const long long LINF = 1e18;
const double PI = 3.14159265358979323846;
using ll = long long;
using P = pair<int, int >;
using VI = vector<int>;
using VP = vector<P>;

template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }

#pragma region vector入出力用

template<typename T>
istream& operator >> (istream& is, vector<T>& vec) {
	for (T& x : vec) is >> x;
	//for(int i=0; i<vec.size(); i++) is >> x[i]; とかでもいいです。
	return is;
}
template<typename T>
ostream& operator << (ostream& os, vector<T>& vec) {
	for (int i = 0; i < vec.size(); i++) {
		os << vec[i] << (i + 1 == vec.size() ? "" : " ");
	}
	return os;
}

#pragma endregion

#pragma region Functions


#pragma endregion

signed main()
{
	INIT; // 必須
	
	
	int n;
	cin >> n;
	rep(i, n) {
		int k; cin >> k;
		vector<int> L(k);
		cin >> L;
		sort(L.rbegin(), L.rend());
		cout << L << "\n";
	}

}