as easy as A+B

#include<stdio.h>
#include<algorithm>
using namespace std;
int A[100000];
int main( )
{
int N;
scanf("%d",&N);
while(N--)
{
int i,p;
scanf("%d",&p);
for(i=0;i<p;i++)
scanf("%d",&A[i]);
sort(A,A+p);
for(i=0;i<p;i++)
printf(i?" %d":"%d",A[i]);
puts("");
}
return 0;
}