static void Main(string[] args)
        {
            // We ask for user input, choose which conversion you want
            // if the user press 1 we are doing conversion from celsius to fahrenheit
            // if user press 2, we are doing conversion from fahrenheit to celsius
            // and base of user input we are calling the corresonding static method
            // for conversion and just print the conversion on the console..
            // TODO : For excercise here you can implement validation, what if user enters other value
            // TODO : different from 1 and 2 ? We need to validate that input and return message that
            // TODO : input is invalid...

            Console.WriteLine("Select the convertor direction");
            Console.WriteLine("1. From Celsius to Fahrenheit.");
            Console.WriteLine("2. From Fahrenheit to Celsius.");

            string selection = Console.ReadLine();
            double F, C = 0;

            switch (selection)
            {
            case "1":
                Console.Write("Enter the Celsius temperature: ");
                F = TemperatureConvertor.CelsiusToFarenheit(Console.ReadLine());
                Console.WriteLine("Temperature in Fahrenheit: {0:F2}", F);
                break;

            case "2":
                Console.Write("Enter the Farenheit temperature: ");
                C = TemperatureConvertor.FarenheitToCelsius(Console.ReadLine());
                Console.WriteLine("Temperature in Celsius: {0:F2}", C);
                break;
            }
        }
        static void Main(string[] args)
        {
            Console.WriteLine("Select the convertor direction");
            Console.WriteLine("1. From Celsius to Fahrenheit.");
            Console.WriteLine("2. From Fahrenheit to Celsius.");

            string selection = Console.ReadLine();

            switch (selection)
            {
            case "1":
            {
                Console.Write("Enter the Celsius temperature: ");
                var fahrenheit = TemperatureConvertor.CelsiusToFahrenheit(Console.ReadLine());
                Console.WriteLine("Temperature in Fahrenheit: {0:F2}", fahrenheit);
                break;
            }

            case "2":
            {
                Console.Write("Enter the Fahrenheit temperature: ");
                var celsius = TemperatureConvertor.FahrenheitToCelsius(Console.ReadLine());
                Console.WriteLine("Temperature in Celsius: {0:F2}", celsius);
                break;
            }
            }
        }