

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.Scanner;
import java.io.*;

public class CodeForces {
    public static void main(String[] args) throws IOException {
        Scanner in=new Scanner(System.in);
        int num=Integer.parseInt(in.nextLine());
        
        if(num%2==0) {
            System.out.println("0");
        }else {
            System.out.println("1");
        }
    }
}
