import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        // System.out.println("n = "+ n);
        for (int i = 0; i < n ; i++) {
            int k = sc.nextInt();
            ArrayList<Integer> parts = new ArrayList<Integer>();
            for (int j = 0; j < k; j++) {
                parts.add(sc.nextInt());
            }
            Collections.sort(parts);
            Collections.reverse(parts);
            int[] tmp = new int[parts.size()];
            parts.toArray();
            for (int value : parts) {
                System.out.print(value);
                System.out.print(" ");
            }
            System.out.print("\n");
        }
    }
}