#include <bits/stdc++.h>
using namespace std;
#define rep(i,l,r) for(int i=(l);i<(r);++i)
typedef long long ll;

int main(){
	int n; cin>>n;
	rep(i,0,n){
		int k; cin>>k;
		vector<int> v(k);
		rep(j,0,k) cin>>v[j];
		sort(v.rbegin(),v.rend());
		for(auto x:v) cout<<x<<" ";
		cout<<endl;
	}
}