

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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StreamTokenizer;

public class QuirkyQuantifiers {
    private static StreamTokenizer parser;
    public static void main(String[] args) {
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {
            parser = new StreamTokenizer(reader);
            int n = next();
            System.out.println(n % 2);
        } catch(IOException e) {
            e.printStackTrace();
        }

    }
    private static int next() throws IOException {
        parser.nextToken();
        return (int) parser.nval;
    }
}