srabsko_unleashed_1

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

namespace SrabskoUnlesashed
{
    using System.Text.RegularExpressions;

    class Program
    {
        static void Main(string[] args)
        {
            Regex regex = new Regex(@"[\D]+[ ][@](.*?)*[ ][\d]+[ ][\d]+");

            var line = Console.ReadLine();

            var events = new Dictionary<string, Dictionary<string, int>>();

            while (line != "End")
            {
                var isMatch = regex.IsMatch(line);
                if (isMatch)
                {
                    var splitted = line.Split('@');
                    var venuePrices = splitted[1].Split();

                    var name = splitted[0].Trim();
                    var venue = "";
                    for (int i = 0; i < venuePrices.Length - 2; i++)
                    {
                        venue += venuePrices[i] + " ";
                    }
                    venue = venue.Trim();
                    var price = int.Parse(venuePrices[venuePrices.Length - 1].Trim());
                    var count = int.Parse(venuePrices[venuePrices.Length - 2].Trim());

                    if (!events.ContainsKey(venue))
                    {
                        events.Add(venue, new Dictionary<string, int>());
                    }

                    if (!events[venue].ContainsKey(name))
                    {
                        events[venue].Add(name, 0);
                    }

                    events[venue][name] += (price*count);
                }

                line = Console.ReadLine();
            }

            foreach (var city in events)
            {
                Console.WriteLine(city.Key);
                foreach (var performance in city.Value.OrderByDescending(t => t.Value))
                {
                    Console.WriteLine("#  {0} -> {1}", performance.Key, performance.Value);
                }
            }
        }
    }
}