题目描述

The Body Mass Index (BMI) is one of the calculations used by doctors to assess an adult’s health. The doctor measures the patient’s height (in metres) and weight (in kilograms), then calculates the BMI using the formula:

$$\text{BMI} = \dfrac{\text{weight}}{\text{height} \times \text{height}} $$

Write a program which prompts for the patient’s height and weight, calculates the BMI, and displays the corresponding message from the table below.

BMI Category	Message
More than $25$	Overweight
Between $18.5$ and $25.0$ (inclusive)	Normal weight
Less than $18.5$	Underweight

输入格式

第一行输入体重，第二行输入身高（以米为单位）。

输出格式

输出所得 BMI 值对应的信息。

题目大意

给出两个浮点数 $weight(1.0 \leq weight \leq 100.0)$ 与 $height(1.0 \leq height \leq 2.0)$，请你帮忙判断其 BMI 值所对应的信息：

BMI 范围	对应信息
大于 $25$	Overweight
介于 $18.5$ 与 $25.0$ 之间	Normal weight
小于 $18.5$	Underweight

BMI 计算公式：

$$\text{BMI} = \dfrac{\text{weight}}{\text{height} \times \text{height}} $$

69
1.73

Normal weight

84.5
1.8

Overweight

提示

Explanation for Output in Sample Input 1:

The BMI is $69 \div (1.73 \times 1.73)$, which is approximately $23.0545$. According to the table, this is a "Normal weight".

Explanation for Output in Sample Input 2:

The BMI is $84.5 \div (1.8 \times 1.8)$, which is approximately $26.0802$. According to the table, this is "Overweight".