using System;

​

class CurrencyConverter

{

    double ConvertUSDToGBP(float InUSD)

    {

        return Math.Round(InUSD / 1.26f, 2);

    }

    double ConvertGBPToUSD(float InGBP)

    {

        return Math.Round(InGBP * 1.26f, 2);

    }

    float AskForCurrencyAmount()

    {

        Console.WriteLine("How much would you like to convert?");

        float Value;

        if (!float.TryParse(Console.ReadLine(), out Value))

        {

            AskForCurrencyAmount();

        }

        else

        {

            return Value;

        }

        return 0f;

    }

    public void AskForExchange()

    {

        Console.WriteLine("Would you like to convert from USD to GBP (1) or GBP to USD (2)?");

        string Answer = Console.ReadLine();

        if(Answer == "1")

        {

            Console.WriteLine("Here is the converted amount £" + ConvertUSDToGBP(AskForCurrencyAmount()).ToString());

            AskForExchange();

        }

        else if(Answer == "2")

        {

            Console.WriteLine("Here is the converted amount $" + ConvertGBPToUSD(AskForCurrencyAmount()).ToString());

            AskForExchange();

        }

        else

        {

            AskForExchange();

        }   

    }

}

public class Program

{

    public static void Main()

    {

        CurrencyConverter ConverterSystem = new CurrencyConverter();

        ConverterSystem.AskForExchange();

    }

}