

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;


public class JavaApplication144 {

   
    public static void main(String[] args) {
        int n,s,x,y;
        Scanner in=new Scanner(System.in);
        n=in.nextInt();
        x=n%10;
        //System.out.println(x);
        if(x%2==0)
        {
            System.out.println("0");
        }
        else
        {
            System.out.println("1");
        }
        
       
        
    }
    
}
