https://codeforces.com/problemset/problem/1312/B/
"""
要想 j - cs[j] == i - cs[i], 必須要 j - i == cs[j] - cs[i]
已知 j - i > 0
倒序 cs[j] - cs[i] <= 0
"""
t = int(input())
for _ in range(t):
n = int(input())
cs = list(map(int, input().split()))
cs.sort(reverse=True)
print(*cs)