import java.util.Scanner;

public class Bobby
{
  public static void main(String[] args)
  {
    Scanner in = new Scanner(System.in);
    String sentence = in.nextLine();

    while (!sentence.equals("END")) {
      if (sentence.equals("")) {
        System.out.println("Good then");
      }
      else if (sentence.charAt(sentence.length()-1) == '?') {
        if (sentence.equals(sentence.toUpperCase())) {
          System.out.println("I know what I am doing!");
        }
        else {
          System.out.println("Good");
        }
      }
      else if (sentence.equals(sentence.toUpperCase())) {
        System.out.println("Cool man");
      }
      else {
        System.out.println("Uum");
      }
      sentence = in.nextLine();
    }
  }
}