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

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.BackgroundColor = ConsoleColor.DarkCyan;
            Console.ForegroundColor = ConsoleColor.Black;
            Console.Title = "Zadacha 1";
            Console.OutputEncoding = Encoding.UTF8;
           //-------------------------------------
            Console.Clear();
            Console.SetWindowPosition(0, 0);
           //--------------------------------
            Console.WriteLine("Задача: конвертор от USD към BGN. Напишете exit когато приключите.\n");
            Console.Write("USD: ");
            //--------------------------------
            double usd;
            double bgn;

            //--------------------------------

            string message = Console.ReadLine();

            bool IsNumber;

            //--------------------------------

            while (message != "exit"){
                message = Console.ReadLine();
                Console.Write("USD: ");
    // check if theh message is a number

                IsNumber = double.TryParse(message, out usd);
                // it it's a number do the conversion and display

                if (IsNumber){

                   bgn = usd * 1.79549;

                   string temp = String.Format("{0:0.00}", bgn);
                   bgn = Convert.ToDouble(temp);

                    Console.WriteLine("{0} щатски долара са {1} лева", usd, bgn);
                }




            }