

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.io.*;

public class aaaaaaaaaaaaaaaa {
	public void run() throws Exception {
		Scanner file = new Scanner(System.in);
		System.out.println(file.nextInt() % 2 == 0 ? 0 : 1);
	}

	public static void main(String[] args) throws Exception {
		new aaaaaaaaaaaaaaaa().run();
	}

}
//2 1
//3 3
//4 5
//5 7