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  1. s=input()
  2. print("YES" if sum(s.count(c)%2 for c in s)<=1 else "NO")
  3.  
Success #stdin #stdout 0.04s 9624KB
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stdin
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aaa
stdout
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NO
https://ideone.com/RxlM9q
language:
Python 3 (python  3.12)
created:
2 years ago
visibility:
secret

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