1 #include <iostream>
 2 #include <vector>
 3 #include <algorithm>
 4 using namespace std;
 5 int main(){
 6     int test, n;
 7     cin >> test;
 8     
 9     while(test--)
10     {
11         vector<int> v;
12         cin >> n;
13         for(int i = 0; i < n; i++)
14         {
15             int temp;
16             cin >> temp;
17             v.push_back(temp);
18         }
19         sort(v.begin(), v.end());
20         for(int i = 0; i < n; i++)
21         {
22             if(i == 0)
23                 cout << v[i];
24             else 
25                 cout << " " << v[i]; 
26         }
27         cout << endl;
28     }
29     return 0;
30 }