Srabsko

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace ExamPreparation
{
    public class Venue
    {
        public Venue(string name)
        {
            this.Name = name;
            this.Singers = new List<Singer>();
        }

        public string Name { get; private set; }

        public List<Singer> Singers { get; set; }

        public override string ToString()
        {
            StringBuilder output = new StringBuilder();
            output.AppendLine(this.Name);

            foreach (var singer in this.Singers.OrderByDescending(s => s.Money))
            {
                output.AppendLine($"#  {singer}");
            }

            return output.ToString().Trim();
        }
    }

    public class Singer
    {
        public Singer(string name, long money)
        {
            this.Name = name;
            this.Money = money;
        }

        public string Name { get; private set; }

        public long Money { get; set; }

        public override string ToString()
        {
            return $"{this.Name} -> {this.Money}";
        }
    }

    public class Startup
    {
        public static void Main()
        {
            string input = Console.ReadLine();
            string pattern = @"((?:.*?)\s{1,3})@((?:.*?)\s{1,3})(\d+) (\d+)";
            Regex regex = new Regex(pattern);
            Dictionary<string, Venue> tableInfo = new Dictionary<string, Venue>();

            while (input != "End")
            {
                Match match = regex.Match(input);

                if (match.Success)
                {
                    string singerName = match.Groups[1].Value.Trim();
                    string venue = match.Groups[2].Value.Trim();
                    long ticketsPrice = long.Parse(match.Groups[3].Value.Trim());
                    long ticketsCount = long.Parse(match.Groups[4].Value.Trim());
                    long totalMoney = ticketsCount * ticketsPrice;

                    if (tableInfo.ContainsKey(venue))
                    {
                        if (tableInfo[venue].Singers.Any(s => s.Name == singerName))
                        {
                            tableInfo[venue].Singers.Find(s => s.Name == singerName).Money += totalMoney;
                        }
                        else
                        {
                            tableInfo[venue].Singers.Add(new Singer(singerName, totalMoney));
                        }
                    }
                    else
                    {
                        tableInfo.Add(venue, new Venue(venue));
                        tableInfo[venue].Singers.Add(new Singer(singerName, totalMoney));
                    }
                }

                input = Console.ReadLine();
            }

            foreach (var item in tableInfo)
            {
                Console.WriteLine(item.Value);
            }
        }
    }
}