Problem: The evil mastermind, Moriarty, strikes again!  He sent Sherlock an image of a wall, with N integers painted on it. Sherlock is asked to solve the puzzle and find the next clue.
Sherlock knows that Moriarty is a deceitful person. All the numbers painted on the wall are not valid. Only the numbers that are Coprime with the integer X are valid, and the rest are a deceit. Help Sherlock find the valid integers from the given array A so that he can track down Moriarty.  

Input:
First line contains T. T test cases follow.
First line of each test case contains two space-separated integers N and X.
Second line of each test case contains N space-separated integers, forming the array A. 

Output:
Print the valid integers separated by spaces in the order that they appear in the list or "-1" (without the quotes) if there are no valid integers, in a new line for each test case.  

Constraints:
1 ≤ T ≤ 10
1 ≤ N ≤ 10^4
2 ≤ Ai, X ≤ 10^7

SAMPLE INPUT
1
5 4
2 5 8 3 13

SAMPLE OUTPUT
5 3 13

Solution (in PYTHON):

Solution:
'''
# Read input from stdin and provide input before running code

name = raw_input('What is your name?\n')
print 'Hi, %s.' % name
'''
def hcf( n1, n2 ):
  while n1*n2:
    if n1 > n2:
      n1 %= n2
    else:
      n2 %= n1
  return max( n1, n2 )

def coprime( n1, n2 ):
  return hcf( n1, n2 ) == 1
  
numOfTestCase=raw_input()
for i in range(int(numOfTestCase)):
	numOfElements=raw_input().split()
	x=int (numOfElements[1])
	lstOfInput=map(int,raw_input().split())
	result=[]
	for i in lstOfInput:
		if coprime(i,x):
			result.append(i)
	print ' '.join(str(x) for x in result)