#include <iostream>
using namespace std;
 
int main() {
	int D;
	cin >> D;
	for (int i = 0; i < D; i++) {
		int N;
		int* tab;
		cin >> N;
		tab = new int[N];
		for (int j = 0; j < N; j++) {
			cin >> tab[j];
		}
		for (int j = 1; j < N; j++) {
			int pom = tab[j];
			int k;
			for (k = j - 1; k > -1 && tab[k] > pom; k--) {
				tab[k + 1] = tab[k];
			}
			tab[k + 1] = pom;
		}
		int j = N-1;
		do {
			cout << tab[j] << " ";
			j--;
		} while (tab[j+1] == tab[j]);
 
		for (int k = 0; k <= j; k++) {
			cout << tab[k] << " ";
		}
		cout << "\n";
 
		delete[]tab;
	}
	return 0;
}

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