softuni exam results

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

namespace mid_exam
{
    class Program
    {
        static void Main(string[] args)
        {
            var command = Console.ReadLine().Split('-').ToArray();

            var results = new Dictionary<string, int>();
            var submissions = new Dictionary<string, int>();


            while (command[0] != "exam finished")
            {
                if (results.ContainsKey(command[0]) && command[1] != "banned")
                {
                    if (int.Parse(command[2]) > results[command[0]])
                    {
                        results[command[0]] = int.Parse(command[2]);
                    }
                }
                if ((!results.ContainsKey(command[0]) && command[1] != "banned"))
                {
                    results[command[0]] = int.Parse(command[2]);
                }

                if (submissions.ContainsKey(command[1]))
                {
                    submissions[command[1]]++;
                }
                else
                {
                    submissions[command[1]] = 1;
                }

                if (command[1] == "banned")
                {
                    results.Remove(command[0]);
                    submissions.Remove(command[1]);
                }

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

            Console.WriteLine("Results:");

            foreach (var item in results.OrderByDescending(x => x.Value).ThenBy(x => x.Key))
            {
                Console.WriteLine($"{item.Key} | {item.Value}");
            }

            Console.WriteLine("Submissions:");

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