CurrencyConverterDictionary

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

namespace CurrencyConverter
{
    class Program
    {
        static void Main()
        {
            double amountOfMoney = double.Parse(Console.ReadLine());
            string fromCurrency = Console.ReadLine();
            string toCurrency = Console.ReadLine();

            Dictionary<string, double> currencyValues = new Dictionary<string, double>
            {
                ["BGN"] = 1.0,
                ["USD"] = 1.79549,
                ["EUR"] = 1.95583,
                ["GBP"] = 2.53405,
            };

            double result = (currencyValues[fromCurrency] / currencyValues[toCurrency]) * amountOfMoney;

            Console.WriteLine($"{result:f2} {toCurrency}");
        }
    }
}