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RGB7300 - Оронгийн тоо

Өгөгдсөн натурал тооны оронг тоол.

Input

Натурал тоо.

Output

Оронгийн тоо.

Example

Input:
12345

Output:
5

Added by:Bataa
Date:2013-01-25
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:NCSHARP C++ 4.3.2 CPP CPP14 JULIA PYPY3

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