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

On the first line, enter your weight, and on the second line, enter your height (in meters).

输出格式

Output the information corresponding to the BMI value obtained.

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".