

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.*;
import java.math.*;
public class Sol {
      public static void main(String[] args) {
    	  Scanner ip=new Scanner(System.in);
    	  int n=ip.nextInt();
    	  if(n%2==0) {
    		  System.out.println(0);
    	  }else {
    		  System.out.println(1);
    	  }
      }
}