using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("enter your weight in kg:");

            double weight = Convert.ToDouble(Console.ReadLine());

            Console.WriteLine("enter your height in m:");

                double height= Convert.ToDouble(Console.ReadLine());

            double Bmi = weight / (height*height);

            Console.WriteLine("your bmi is:"+ Math.Round(Bmi,2));

            Console.ReadLine();

            if (Bmi <= 16)

                Console.WriteLine("you are underweight");

else if (Bmi< 25)

                Console.WriteLine("you have normal weight ");

            else if (Bmi < 30)

                Console.WriteLine("you are overweight");

            else Console.WriteLine("you are severly overweight");

    }

}