

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.InputStreamReader;

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