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  1. t=int(input())
  2. for _ in range(t):
  3.     n=int(input())
  4.     arr=[int(x) for x in input().split()]
  5.     xor=0
  6.     for each in arr:
  7.         xor=xor^each
  8.     xor=xor^65
  9.     print(xor)
  10.  
Success #stdin #stdout 0.02s 9148KB
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stdin
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2
4
72 1 8 0
1
0
stdout
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0
65
https://ideone.com/hCVbMe
language:
Python 3 (python  3.9.5)
created:
3 years ago
visibility:
secret

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