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Jumping Jack

CF
11B1600· expert1s64 MB⌨ stdin/stdout
#math

Examples

Sample 1of 3
Input
2
Output
3
Sample 2of 3
Input
6
Output
3
Sample 3of 3
Input
0
Output
0
11B.cpp
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Ln 11·137 BGNU C++20 (64)