using System;

public class Program

{

    public static void Main()

    {

        double valor = Converter.Convert(100, new Celsius(), new Farenheit());

        Console.WriteLine(valor);

    }   

}

​

    public interface ITempertureUnit

    {

        double FromKelvin(double value);

        double ToKelvin(double value);

    }

​

    public class Celsius : ITempertureUnit

    {

        public double FromKelvin(double value)

        {

            return value - 273.15;

        }

        public double ToKelvin(double value)

        {

            return value + 273.15;

        }

    }

​

    public class Kelvin : ITempertureUnit

    {

        public double FromKelvin(double value)

        {

            return value;

        }

        public double ToKelvin(double value)

        {

            return value;

        }

    }

​

    public class Farenheit : ITempertureUnit

    {

​

        public double FromKelvin(double value)

        {

            return value * 1.8 - 459.67;

        }

        public double ToKelvin(double value)

        {

            return (value + 459.67) / 1.8;

        }

​

    }

​

    public static class Converter

    {

        public static double Convert(double value, ITempertureUnit from, ITempertureUnit to)

        {

            return to.FromKelvin(from.ToKelvin(value));

        }

    }

​