Test=int(input())
for I in range(Test):
N=int(input())
Lista=list(map(int,input().split()))
NL=[]
K=0
Cont=0
while(Cont<N):
if(Lista[K] not in NL):
NL=NL+[Lista[K]]
Cont+=1
K+=1
Cad=""
for J in range(N):
Cad=Cad+str(NL[J])+" "
print(Cad[:len(Cad)-1])
1217. Minimum Cost to Move Chips to The Same Position | 347. Top K Frequent Elements |
1503. Last Moment Before All Ants Fall Out of a Plank | 430. Flatten a Multilevel Doubly Linked List |
1290. Convert Binary Number in a Linked List to Integer | 1525. Number of Good Ways to Split a String |
72. Edit Distance | 563. Binary Tree Tilt |
1306. Jump Game III | 236. Lowest Common Ancestor of a Binary Tree |
790. Domino and Tromino Tiling | 878. Nth Magical Number |
2099. Find Subsequence of Length K With the Largest Sum | 1608A - Find Array |
416. Partition Equal Subset Sum | 1446. Consecutive Characters |
1618A - Polycarp and Sums of Subsequences | 1618B - Missing Bigram |
938. Range Sum of BST | 147. Insertion Sort List |
310. Minimum Height Trees | 2110. Number of Smooth Descent Periods of a Stock |
2109. Adding Spaces to a String | 2108. Find First Palindromic String in the Array |
394. Decode String | 902. Numbers At Most N Given Digit Set |
221. Maximal Square | 1200. Minimum Absolute Difference |
1619B - Squares and Cubes | 1619A - Square String |