

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.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {
   
 public static void main(String[] args) throws Exception{
       Scanner s=new Scanner(System.in);
     int num,count=0;
     int[]numbs=new int[4];
     num=s.nextInt();
     if(num%2==0)
         System.out.println("0");
     else
         System.out.println("1");}
}
