

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 Four_test {
    public static Scanner scanner = new Scanner(System.in);
    public static int input;
    public static void main(String []args){
        input=scanner.nextInt();
        int num;
        num=input%2;
        if (num!=0){
            System.out.print("1");
        }else {
            System.out.print("0");
        }
    }
}
