#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < n; i++)
#define srep(i,a,b) for(int i = a; i < b; i++)
#define all(A) (A).begin(),A.end()
#define MOD 1000000007
using namespace std;
using ll = long long;
using P = pair<char,int>;
using Graph = vector<vector<int>>;

int main(void){
	int t; cin >> t;
	rep(i,t){
		int k; cin >> k;
		vector<int> L(k); rep(j,k) cin >> L[j];
		sort(all(L),greater<int>());
		rep(j,k) cout << L[j] << (j == k-1 ? "\n" : " ");
	}
}