

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.lang.*;
import java.util.regex.*;
import java.math.*;
import java.io.*;

public class Quirky_Quantifiers {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int x = Integer.parseInt(in.nextLine());
		int ans = (x%2 == 0) ? 0:1;
		System.out.println(ans);
	}

}

