

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 A{
    
    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");
    }
}