SrabskoUnleashed

namespace _10.SrabskoUnleashed
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;

    public class Program
    {
        public static void Main()
        {

            //singer @venue ticketsPrice ticketsCount
            var dict = new Dictionary<string, Dictionary<string, long>>();

            var line = Console.ReadLine();

            while (line != "End")
            {

                if (!line.Contains(" @")) //in case invalid entry appears -> Dragana@Belgrade23 3500
                {
                    line = Console.ReadLine();

                    continue;

                }
                var allData = line.Split("@".ToCharArray(),StringSplitOptions.RemoveEmptyEntries).ToArray();

                var singerName = allData[0].Trim();
                var concertInfo = allData[1].Trim().Split(' ').ToArray();

                if (concertInfo.Length < 3) //!!!!--- with it it uses too much memory, without it - gives 7th test wrong!
                {
                    continue;
                }

                var ticketCount = long.Parse(concertInfo[concertInfo.Length - 1]);
                var ticketPrice = long.Parse(concertInfo[concertInfo.Length - 2]);

                var venue = string.Empty; //to add Space in the venue Name if the Name is more than 1 word
                for (int i = 0; i < concertInfo.Length - 2; i++)
                {
                    venue += concertInfo[i] + " ";
                }
                venue.TrimEnd(); //to remove the Space added after the venue

                //Venue check

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

                //Singer in Venue check

                if (!dict[venue].ContainsKey(singerName))
                {
                    dict[venue].Add(singerName, 0);
                }
                //add Money value for each
                dict[venue][singerName] += (long)ticketPrice * ticketCount;

                line = Console.ReadLine();
            }

            foreach (var venuePair in dict)
            {
                Console.WriteLine($"{venuePair.Key}");

                foreach (var singerPair in dict[venuePair.Key].OrderByDescending(x => x.Value)) //as per  the Money value
                {
                    Console.WriteLine($"#  {singerPair.Key} -> {singerPair.Value}"); //mind your spaces
                }
            }
        }
    }
}