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  1. for _ in range(int(input())):
  2.     n=int(input())
  3.     hashs="##.."
  4.     for i in range(n):
  5.     	print(hashs*(n//2),end='')
  6.     	if n%2!=0:
  7.     		print(hashs[:2])
  8.     	else:
  9.     		print()
  10.     	print(hashs*(n//2),end='')
  11.     	if n%2!=0:
  12.     		print(hashs[:2])
  13.     	else:
  14.     		print()
  15.     	hashs=hashs[::-1]
  16.  
Success #stdin #stdout 0.03s 9824KB
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stdin
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stdout
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##..##..
##..##..
..##..##
..##..##
##..##..
##..##..
..##..##
..##..##
https://ideone.com/ra9mXA
language:
Python 3 (python  3.9.5)
created:
30 days ago
visibility:
public

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