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$\sum_{i=1}^N \omega(i)$ | HackNow
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$\sum_{i=1}^N \omega(i)$
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UZ only
Oson
100 points
5 s
256 MB
Input format
Output format
Constraints
Examples
1
1
Example #1
Input
10
Output
11
Solution editor
Python 3
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PYTHON
UTF-8
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4 spaces
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