

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.FileReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Stack;
import java.util.StringTokenizer;
import java.util.Vector;
 
public class naloga2{
    public static void main(String[] args) throws Exception{
        BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
        System.out.println(Integer.parseInt(in.readLine())%2);
    }
}