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import sys
a,b,c,k = map(int, sys.stdin.readline().split())
print(min(k, a) + min(k-min(k, a), b) + min(max(k-min(k, a)-min(k-min(k, a), b),0), c))

Success #stdin #stdout 0.03s 9716KB

stdin

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2 4 6 3

stdout

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https://ideone.com/ixBX9d

language:

Python 3 (python 3.9.5)

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public

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