

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 B {

	public static void main(String[] args) throws Exception{
		BufferedReader bff=new BufferedReader(new InputStreamReader(System.in));
		PrintWriter wff=new PrintWriter(new OutputStreamWriter(System.out));
		int N=Integer.parseInt(bff.readLine());
		wff.println((N%2));
		wff.flush();
	}

}
