Problem1506--Numbers Joke

1506: Numbers Joke

Time Limit: 2 Sec  Memory Limit: 256 MB
Submit: 0  Solved: 0
[Submit] [Status] [Web Board] [Creator:]

Description

time limit per test
2 seconds
memory limit per test
64 megabytes
input
standard input
output
standard output
Input

The input contains a single integer a (1≤a≤30).

Output

Output a single integer.

Example
Input
3
Output
27

Source/Category

 
[Submit] [Status]