Biggest Of Three Numbers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Globalization;

namespace _05.TheBiggestOfThreeNumbers
{
    class TheBiggestOfThreeNumbers
    {
        static void Main()
        {
            Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
            // First uncommen this:
            //double a = 0;
            //double b = 0;
            //double c = 0;

            //Console.Write("Enter first number a: ");
            //double.TryParse(Console.ReadLine(), out a);
            //Console.Write("Enter second number b: ");
            //double.TryParse(Console.ReadLine(), out b);
            //Console.Write("Enter third number c: ");
            //double.TryParse(Console.ReadLine(), out c);

            // This is the first way to do it:
            //Console.WriteLine("The biggest number is {0}.", (Math.Max(Math.Max(a, b), c)));

            // This is the second way to do it:
            //if ((a > b) && (a > c))
            //{
            //   Console.WriteLine(a);
            //}
            //else
            //{
            //   if ((b > a) && (b > c))
            //   {
            //      Console.WriteLine(b);
            //   }
            //   else
            //   {
            //      Console.WriteLine(c);
            //   }
            //}

            // This is the third way to do it:
            double max = double.MinValue;

            for (double i = 0; i < 3; i++)
            {
                double num = double.Parse(Console.ReadLine());
                if (num > max)
                {
                    max = num;
                }
            }

            Console.WriteLine(max);

        }
    }
}