i have got the same expected result as the output, still saying u failed. i just dont why ?

• def findZigZagSequence(a, n):
• a.sort()
• mid = int((n + 1)//2)-1
• a[mid], a[n-1] = a[n-1], a[mid]
• c=a[:mid+1]
• b=sorted(a[mid+1:],reverse=True)
• a=c+b
• print(" ".join(map(str, a)))
• • test_cases = int(input())
• "
• for cs in range (test_cases):
• n = int(input())
• a = list(map(int, input().split()))
• findZigZagSequence(a, n)