1966. 숫자를 정렬하자

t = int(input())

for i in range(t):

    n = int(input())

    lst = list(map(int,input().split()))   

    lst.sort()

    print('#%d'%(i+1),end = ' ')

    for j in range(n):

        if j == n-1:

            print(lst[j])

        else:

            print(lst[j],end=' '