Dictionaries_Lambda_Expressions_LINQ - 10. Сръбско Unleashed

using System;
using System.Collections.Generic;
using System.Linq;

namespace _07b_Dictionaries_Lambda_Expressions_LINQ_Exercises
{
    class Dictionaries_Lambda_Expressions_LINQ_Exercises
    {
      static void Main(string[] args)
        {
            Dictionary<string, Dictionary<string, long>> lineUp = new Dictionary<string, Dictionary<string, long>>();


            while (true)
            {
                string[] input = Console.ReadLine().Split(new char[] { '@' }).ToArray();
                if (input[0].Equals("End"))
                {
                    break;
                }
                string artistName = input[0].Trim();
                string[] concertTicketsAndMoney = input[1].Split();
                if (concertTicketsAndMoney.Length < 3 || !input[0].EndsWith(" "))
                {
                    continue;
                }

                int ticketsCount = 0;
                int ticketsPrice = 0;

                try
                {
                    ticketsCount = int.Parse(concertTicketsAndMoney[concertTicketsAndMoney.Length - 1]);
                    ticketsPrice = int.Parse(concertTicketsAndMoney[concertTicketsAndMoney.Length - 2]);
                }

                catch
                {

                    continue;
                }

                string venue = "";
                for (int i = 0; i < concertTicketsAndMoney.Length - 2; i++)
                {
                    venue += concertTicketsAndMoney[i] + " ";
                }
                venue = venue.TrimEnd();


                if (!lineUp.ContainsKey(venue))
                {
                    lineUp.Add(venue, new Dictionary<string, long>());
                }
                if (!lineUp[venue].ContainsKey(artistName))
                {
                    lineUp[venue].Add(artistName, 0);
                }
                lineUp[venue][artistName] += (long)ticketsPrice * ticketsCount;
            }

            foreach (var venue in lineUp)
            {
                Console.WriteLine(venue.Key);
                foreach (var singer in lineUp[venue.Key].OrderByDescending(x => x.Value))
                {
                    Console.WriteLine($"#  {singer.Key} -> {singer.Value}");
                }
            }
        }
    }
}