#3060. Numbers Joke
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ID: 3060
Type: Default
2000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
Numbers Joke
说明
A. Numbers Joke
time limit per test
2 secondsmemory limit per test
64 megabytesinput
standard inputoutput
standard outputInput
The input contains a single integer a (1≤a≤30).
Output
Output a single integer.
Example
Input
3
Output
27