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  1. print(len(set(input())))
  2.  
Success #stdin #stdout 0.01s 27720KB
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1 2 3 4 3 2 1 2 2 3 4 2
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5
https://ideone.com/cd6HOC
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
public

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