Problem: 

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

Solution (in JAVA):

Solution:
/*package whatever //do not write package name here */

import java.io.*;
import java.lang.*;
import java.util.*;
import java.math.BigInteger;
public class GFG 
{
	public static void main (String[] args)
	{
	    Scanner sc=new Scanner(System.in);
	    //String s=new String();
	    int n=sc.nextInt();
	    if(n%2==0)
	    System.out.print(0);
	    else
	    System.out.print(1);
	}
}