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");
}
}
}
}