int main()
{
int a = 0;
float b = 0;
while ((scanf ("%d %f",&a,&b)) != EOF)
{
b = b/100;
float BMI = 1.0*a/(b*b);
if (BMI < 18.5)
{
printf ("Underweight\n");
}
else if (BMI <= 23.9 && BMI >= 18.5)
{
printf ("Normal\n");
}
else if (BMI <= 27.9 && BMI > 23.9)
{
printf ("Overweight\n");
}
else
{
printf ("Obese\n");
}
}
return 0;
}