Please subscribe to the official Codeforces channel in Telegram via the link: https://t.me/codeforces_official. ×

A. Da Vinci Powers
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 (0 ≤ a ≤ 35).

Output

Output a single integer.

Examples
Input
3
Output
8
Input
10
Output
1024