

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
//package temp;

import java.util.*;

public class Main {
	static final int maxn = 110;
	static final int dead = 0x7f7f7f7f;

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n=in.nextInt();
		System.out.println(n%2);
	}
}
