import java.util.*;
public class bmi{
public static void main(String [] args){
Scanner sc=new Scanner(System.in);
float h=sc.nextFloat();
float w=sc.nextFloat();
float bmiValue=w/(h*h);
float bm = Math.round(bmiValue * 100.0) / 100.0;

if(bm<=18.5){
System.out.println(bm+"\nUnderweight");}
else if(bm>18.5 && bm<=24.9){
System.out.println(bm+"\nNormal weight");}
else if(bm>24.9 && bm<=29.9){
System.out.println(bm+"\nOverweight");}
else if(bm>=30){
System.out.println(bm+"\nObese");}
else{
System.out.println("Invalid input");
}
}
}