How to use 'how to take n inputs in one line in python' in Python

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def Main(n):
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    for cas in range(1, n+1):
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        l, w, h = map(int, input().split())
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        if l <= 20 and w <= 20 and h <= 20:
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            print("Case %d: good"%cas)
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        else:
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            print("Case %d: bad" % cas)