import java.util.Scanner;
public  class Main {
    
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        while(sc.hasNextInt()) {
            int weight = sc.nextInt();
            double height = sc.nextInt() * 0.01;
            double bmi = weight / Math.pow(height,2);
            if(bmi < 18.5) {
                System.out.println("Underweight");
            } else if(bmi >= 18.5 && bmi <= 23.9) {
                System.out.println("Normal");
            } else if(bmi > 23.9 && bmi<=27.9) {
                System.out.println("Overweight");
            } else {
                System.out.println("Obese");
            }
        }
    }
}