#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int Weight = 0, Height = 0;
	double BMI = 0;
	while (scanf("%d %d", &Weight, &Height) != EOF)
	{
		float h = Height / 100.0;
		BMI = Weight*1.0 / (h*h);
		if (BMI < 18.5)
		{
			printf("Underweight\n");
		}
		else if (BMI > 27.9)
		{
			printf("Obese\n");
		}
		else if (BMI >18.5 && BMI <= 23.9)
		{
			printf("Normal\n");
		}
		else
		{
			printf("Overweight\n");
		}
	}
	return 0;
}