

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.*;
public class Main {
  public static void main(String[] args) {
    Scanner s=new Scanner(System.in);
    int n=s.nextInt();
    if(n%2==0)
    System.out.println(0);
    else
    System.out.println(1);
  }
}