#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(LL i = a;i<b; i++)
#define rrep(i,a,b) for(LL i = a;i>=b; i--)
#define INF ((1LL<<62)-(1LL<<31))
#define ooki 9,223,372,036,854,775,807
#define tii -9,223,372,036,854,775,808
typedef long long LL;
int main(){
  LL n;
  cin >> n;
  rep(i,0,n){
    int k;
    cin>>k;
    vector<LL> a(k);
    rep(i,0,k){cin>>a[i];}
    sort(begin(a),end(a));
    reverse(begin(a),end(a));
    rep(i,0,k){cout<<a[i]<<" ";}
    cout<<endl;
  }
    
  
}