

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13


Output

1


Input

927


Output

1


Input

48


Output

0
import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
public class Question1
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner s = new Scanner(System.in);
		int h = s.nextInt();
		
		if(h%2 == 1)
			System.out.println(1);
		else
		System.out.println(0);
	}
}