Exam\Concert

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


namespace Orders
{
    class Program
    {
        static void Main(string[] args)
        {
Dictionary<string, List<string>> bands = new Dictionary<string, List<string>>();

Dictionary<string, int> playTime = new Dictionary<string, int>();

int total = 0;


string input = string.Empty;

while((input = Console.ReadLine()) != "start of concert")
{
    string[] arrg = input.Split("; ").ToArray();

    string command = arrg[0];
    string names = arrg[1];

    if (command == "Add")
    {
        List<string> members = arrg[2].Split(", ").ToList();

        if (!bands.ContainsKey(names))
        {

        bands.Add(names, members);

        }
        else
        {
            foreach (var member in members)
            {
            if (!bands[names].Contains(member))
                {
                    bands[names].Add(member);
                }
            }
        }
    }
    else
    {
        int time = int.Parse(arrg[2]);
        total += time;

        if (!playTime.ContainsKey(names))
        {
            playTime.Add(names, time);
        }
        else
        {
            playTime[names] += time;
        }
    }
}

string groupPlay = Console.ReadLine();
            //Console.WriteLine($"Total time: {total}");
            Console.WriteLine($"Total time: {playTime.Values.Sum()}");

        foreach (var band in playTime.OrderByDescending(x => x.Value).ThenBy(x => x.Key))
            {
                Console.WriteLine($"{band.Key} -> {band.Value}");

            }
            Console.WriteLine(groupPlay);
            foreach (var member in bands[groupPlay])
            {
                Console.WriteLine($"=> {member}");
            }
        }
    }
}