

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 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int N = Integer.parseInt(in.next());
        if (N%2==1) System.out.println(1);
        else System.out.println(0);
    }
}
	   	 	 	 
				 			  