#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int n;
  cin >> n;
  rep(_, n) {
    int k;
    cin >> k;
    vector<int> a(k);
    rep(i, k) cin >> a[i];
    sort(a.rbegin(), a.rend());
    rep(i, k) cout << a[i] << " ";
    cout << endl;
  }
  return 0;
}