

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.*;
public class Main{
    static int lastnum(int n)
    {
        if(n<10)
        return n;
        else
        return lastnum(n%10);
    }
    static public void main(String[] args)
    {
        Scanner sc=new Scanner(System.in);
        
        int n=sc.nextInt();
        int x=lastnum(n);
        if(x%2==0)
        System.out.println("0");
        else
        System.out.println("1");
    }
}