01. Furniture

using System;
using System.Linq;
using System.Text.RegularExpressions;

namespace Furniture
{
    internal class Program
    {
        static void Main(string[] args)
        {

            var pattern = new Regex(@">>(?<furniture>[A-Za-z]+)<<(?<price>\d+([.]\d+)?)!(?<quantity>\d+)");

            Console.WriteLine("Bought furniture:");

            double totalSum = 0;

            string command;

            while ((command = Console.ReadLine()) != "Purchase")
            {
                if (pattern.IsMatch(command))
                {
                    var current = pattern.Match(command);

                    Console.WriteLine(current.Groups["furniture"].Value);

                    totalSum += double.Parse(current.Groups["price"].Value) * int.Parse(current.Groups["quantity"].Value);
                }
            }

            Console.WriteLine($"Total money spend: {totalSum:f2}");
        }
    }
}