

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 probA{
	public static void main(String[] args) {
		Scanner scan=new Scanner(System.in);
		int t=1;
		while(t-->0){
			int n=scan.nextInt();
			System.out.println(n%2==0 ? 0 :1);

		}
	}
}