import java.text.DecimalFormat;
import java.util.Scanner;


 class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double m = sc.nextDouble();
		double h = sc.nextDouble();
		
		double ans = m/(h*h);
		if(ans<18.5)System.out.println("Underweight");
		else if(ans>=18.5&&ans<24)System.out.println("Normal");
		else {
			DecimalFormat decimalFormat = new DecimalFormat("0.######");
			System.out.println(decimalFormat.format(ans));
			System.out.println("Overweight");
		}
	}
}