#include <iostream>
#include <algorithm>
#include <vector>
#include <functional>
using namespace std;

int main() {
	int n;
	cin >> n;
	
	for (int i = 0; i < n; i++) {
		int cnt;
		cin >> cnt;
		vector<int> vec;
		for (int j = 0; j < cnt; j++) {
			int l; cin >> l;
			vec.push_back(l);
		}
		sort(vec.begin(), vec.end(), greater<int>());
		for (int j = 0; j < cnt; j++) {
			cout << vec[j];
			if (j + 1 < cnt) cout << " ";
		}
		cout << endl;
	}
	return 0;
}