#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;


int main(){
    int n, k;
    cin >> n;
    for (int i = 0; i < n; i++){
        cin >> k;
        vector<int> L(k);
        for (int j = 0; j < k; j++){
            cin >> L[j];
        }
        sort(L.begin(), L.end(), greater());
        string delim = "";
        for (auto x: L){
            cout << delim << x;
            delim = " ";
        }
        cout << endl;
    }
}