import java.io.*;
import java.util.*;

public class Solution {

    public static void main(String[] args) {
        try (Scanner scanner = new Scanner(System.in)) {
            int n = scanner.nextInt();
            String str = String.valueOf(n);
            
            if (n == Integer.parseInt(str)) {
                System.out.println("Good job");
            }
        } catch(Exception ex) {
            System.out.println("Wrong answer");
        }
    }
}