Ex 2

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

namespace SandBox
{
    struct Candidate
    {
        public string identifier;
        public int countTask;
        public int fine;
    }
    public class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, List<Candidate>> dictionaryVacancyCandidatesList = new Dictionary<string, List<Candidate>>();
            Dictionary<string, int> maxCountCandidatesVacancy = new Dictionary<string, int>();

            int countVacancy = Convert.ToInt32(Console.ReadLine());
            for (int i = 0; i < countVacancy; i++)
            {
                string vacancyAndMaxCountCandidates = Console.ReadLine();
                string vacancy = vacancyAndMaxCountCandidates.Split(',')[0];
                int maxCountCandidates = Convert.ToInt32(vacancyAndMaxCountCandidates.Split(',')[1]);
                maxCountCandidatesVacancy.Add(vacancy, maxCountCandidates);
                dictionaryVacancyCandidatesList.Add(vacancy, new List<Candidate>());
            }

            int countCandidates = Convert.ToInt32(Console.ReadLine());

            for (int i = 0; i < countCandidates; i++)
            {
                string candidate = Console.ReadLine();
                string vacancy = candidate.Split(',')[1];
                dictionaryVacancyCandidatesList[vacancy].Add(new Candidate()
                {
                    identifier = candidate.Split(',')[0],
                    countTask = Convert.ToInt32(candidate.Split(',')[2]),
                    fine = Convert.ToInt32(candidate.Split(',')[3])
                });
            }

            List<string> candidatesList = new List<string>();
            foreach (var keyValue in dictionaryVacancyCandidatesList)
            {
                var sortedCandidate = from c in keyValue.Value
                    orderby c.countTask descending, c.fine select c;
                List<Candidate> candidates = new List<Candidate>();
                candidates.AddRange(sortedCandidate.Take(maxCountCandidatesVacancy[keyValue.Key]));
                foreach (var c in candidates)
                {
                    candidatesList.Add(c.identifier);
                }
            }

            candidatesList.Sort();

            foreach (var c in candidatesList)
            {
                Console.WriteLine(c);
            }
        }
    }
}