#include <stdio.h>

void sum(int zhong,int gao)
//定义一个函数用来计算
{
	double a = 0;
	a = zhong / (gao * gao / 10000.0);
	//计算BMI值并把它存在变量a中
	if (a < 18.5)
	{
		printf("Underweight\n");
	}
	else if (a >= 18.5 && a <= 23.9)
	{
		printf("Normal\n");
	}
	else if (a > 23.9 && a <= 27.9)
	{
		printf("Overweight\n");
	}
	else if (a > 27.9)
	{
		printf("Obese\n");
	}
}

int main()
{
	int c, d;
	while ((scanf("%d%d", &c, &d)) != EOF)
	//循环输入身高和体重
	{
		sum(c, d);
	}
	return 0;
}