

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.*;
public class Solution
{
	public static void main(String[] args)throws IOException
	{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		int a=Integer.parseInt(br.readLine());
		if(a%2!=0)
		{
			System.out.println(1);
		}
		else
		{
			System.out.println(0);
		}
	}
}