message manager

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Text;
using System.Linq;
using System.Windows.Markup;
using System.IO;
using System.Data;

namespace _01._Furniture
{
    class Program
    {
        static void Main(string[] args)
        {
            int capacity = int.Parse(Console.ReadLine());
            string[] command = Console.ReadLine().Split('=');

            var sent = new Dictionary<string, int>();
            var received = new Dictionary<string, int>();
            var messages = new Dictionary<string, int>();

            while (command[0] != "Statistics")
            {
                if (command[0] == "Add")
                {
                    if ((!sent.ContainsKey(command[1])) && !received.ContainsKey(command[1]))
                    {
                        sent[command[1]] = int.Parse(command[2]);
                        received[command[1]] = int.Parse(command[3]);
                        messages[command[1]] = sent[command[1]] + received[command[1]];
                    }
                }
                if (command[0] == "Message")
                {
                    //•   "Message={sender}={receiver}":
                    if (sent.ContainsKey(command[1]) && received.ContainsKey(command[2]))
                    {
                        sent[command[1]]++;
                        received[command[2]]++;
                        messages[command[1]]++;
                        messages[command[2]]++;

                        if (messages[command[1]] >= capacity)
                        {
                            sent.Remove(command[1]);
                            received.Remove(command[1]);
                            messages.Remove(command[1]);
                            Console.WriteLine($"{command[1]} reached the capacity!");
                        }
                        if (messages[command[2]] >= capacity)
                        {
                            sent.Remove(command[2]);
                            received.Remove(command[2]);
                            messages.Remove(command[2]);
                            Console.WriteLine($"{command[2]} reached the capacity!");
                        }
                        // if (sent[command[1]] == capacity)
                        // {
                        //     sent.Remove(command[1]);
                        //    received.Remove(command[1]);
                        //    Console.WriteLine($"{command[1]} reached the capacity!");
                        //  }
                        //  if (received[command[2]] == capacity)
                        // {
                        //     sent.Remove(command[2]);
                        //     received.Remove(command[2]);
                        //      Console.WriteLine($"{command[2]} reached the capacity!");
                        //  }

                    }
                }
                if (command[0] == "Empty")
                {
                    if (sent.ContainsKey(command[1]))
                    {
                        sent.Remove(command[1]);
                        received.Remove(command[1]);
                    }

                    if (command[1] == "All")
                    {
                        sent.Clear();
                        received.Clear();
                    }
                }

                command = Console.ReadLine().Split('=');
            }

            Console.WriteLine($"Users count: {sent.Count}");

            foreach (var item in received.OrderByDescending(x => x.Value).ThenBy(x => x.Key))
            {
                //{username} - {messages}
                Console.WriteLine($"{item.Key} - {messages[item.Key]}");
            }
        }
    }
}