import java.util.Scanner;

/**
 * 计算BMI
 */
public class Main {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		System.out.print("Height (m): ");
		double height = scanner.nextDouble();
		System.out.print("Weight (kg): ");
		double weight = scanner.nextDouble();
		double bmi = weight / (height * height);
		if (bmi < 18.5) {
			System.out.println("BMI="+bmi+" 过轻");
		}else if (bmi <= 25) {
			System.out.println("BMI="+bmi+" 正常");
		}else if (bmi <= 28) {
			System.out.println("BMI="+bmi+" 过重");
		}else if (bmi <= 32) {
			System.out.println("BMI="+bmi+" 肥胖");
		}else {
			System.out.println("BMI="+bmi+" 非常肥胖");
		}

	}

}