Mystery Circuit
Description
The input contains a single integer $a$ ($0 \le a \le 15$).
Output a single integer.
Input
The input contains a single integer $a$ ($0 \le a \le 15$).
Output
Output a single integer.
Samples
3
13
The input contains a single integer $a$ ($0 \le a \le 15$).
Output a single integer.
The input contains a single integer $a$ ($0 \le a \le 15$).
Output a single integer.
3
13