t= int(input())
for data_set in range(t):
nums = list(map(int, input().split(' ')))
odd_index = []
even_index = []
for i in range(1,len(nums)):
if i % 2 == 0:
even_index.append(nums[i])
else:
odd_index.append(nums[i])
result = even_index + odd_index
print(*result)
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