

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
/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;import java.math.BigInteger;
import java.io.OutputStreamWriter;
 
/* Name of the class has to be "Main" only if the class is public. */
public class bbg
{
	public static int result;
	public static int elemente;
 
public static ArrayList<Integer> [] graph;
 
public static int[]cats;
 
public static int vizitat[];
public static int x;
//public static HashMap<String, Integer> map2;
 
 
	public static void main (String[] args) throws IOException {
 
Scanner input = new Scanner(System.in);


int str=input.nextInt();

if(str % 2==0)
System.out.println(0);

else System.out.println(1);
	



}


}