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  1. print('{0:.2f}'.format((lambda x: x.count("A") / len(x))(input().split())))
Success #stdin #stdout 0.02s 9044KB
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F B A A B C A D
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0.38
https://ideone.com/ijOHX8
language:
Python 3 (python  3.9.5)
created:
2 years ago
visibility:
secret

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