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using System;

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public class HelloWorld

{

    public static void Main(string[] args)

    {

        Console.WriteLine ("Hello World");

        Console.WriteLine("Enter your weight (in Kg):");

        var weightText = Console.ReadLine();

        Console.WriteLine("Enter your height (in meters):");

        var heightText = Console.ReadLine();

        var weight = Convert.ToDecimal(weightText);

        var height = Convert.ToDecimal(heightText);

        var bodyMassIndex = weight/(height*height);

        Console.WriteLine("Your body mass index is: ");

        Console.WriteLine(bodyMassIndex.ToString("#.#"));

        if (bodyMassIndex < 18.5m)

           Console.WriteLine("You are too thin!");

        else if (bodyMassIndex < 24.9m)

           Console.WriteLine("Your BMI is normal.");

        else 

           Console.WriteLine("You are overweight!");

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    }

}

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