02. Array Manipulator

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

namespace _02._Array_Manipulator
{
    class Program
    {
        static void Main()
        {
            var collection = Console.ReadLine().Trim().Split().Select(int.Parse).ToList();

            while (true)
            {
                var input = Console.ReadLine();
                if (input == "end")
                {
                    break;
                }

                var command = input.Split();

                if (command[0] == "exchange")
                {
                    var index = int.Parse(command[1]);
                    if (index < 0 || index > collection.Count - 1)
                    {
                        Console.WriteLine("Invalid index");
                        continue;
                    }
                    var firstPart = collection.Take(index + 1).ToList();
                    collection.RemoveRange(0, index + 1);
                    collection.AddRange(firstPart);
                }
                else if (command[0] == "max" && command[1] == "even")
                {
                    var collectionHasMaxElement = collection.Where(x => x % 2 == 0).ToList();
                    if (collectionHasMaxElement.Count == 0)
                    {
                        Console.WriteLine("No matches");
                    }
                    else
                    {
                        var maxEven = collection.Where(x => x % 2 == 0).Max();
                        var indexOfMaxEven = collection.LastIndexOf(maxEven);
                        Console.WriteLine(indexOfMaxEven);
                    }
                }
                else if (command[0] == "max" && command[1] == "odd")
                {
                    var collectionHasMaxElement = collection.Where(x => x % 2 != 0).ToList();
                    if (collectionHasMaxElement.Count == 0)
                    {
                        Console.WriteLine("No matches");
                    }
                    else
                    {
                        var maxOdd = collection.Where(x => x % 2 != 0).Max();
                        var indexOfMaxOdd = collection.LastIndexOf(maxOdd);
                        Console.WriteLine(indexOfMaxOdd);
                    }
                }
                else if (command[0] == "min" && command[1] == "even")
                {
                    var collectionHasMinElement = collection.Where(x => x % 2 == 0).ToList();
                    if (collectionHasMinElement.Count == 0)
                    {
                        Console.WriteLine("No matches");
                    }
                    else
                    {
                        var minEven = collection.Where(x => x % 2 == 0).Min();
                        var indexOfMinEven = collection.LastIndexOf(minEven);
                        Console.WriteLine(indexOfMinEven);
                    }
                }
                else if (command[0] == "min" && command[1] == "odd")
                {
                    var collectionHasMinElement = collection.Where(x => x % 2 != 0).ToList();
                    if (collectionHasMinElement.Count == 0)
                    {
                        Console.WriteLine("No matches");
                    }
                    else
                    {
                        var minOdd = collection.Where(x => x % 2 != 0).Min();
                        var indexOfMinOdd = collection.LastIndexOf(minOdd);
                        Console.WriteLine(indexOfMinOdd);
                    }
                }
                else if (command[0] == "first" && command[2] == "even")
                {
                    var count = int.Parse(command[1]);
                    if (count > collection.Count)
                    {
                        Console.WriteLine("Invalid count");
                    }
                    else
                    {
                        var elemtsToPrint = collection.Where(x => x % 2 == 0).Take(count).ToList();
                        Console.WriteLine($"[{string.Join(", ", elemtsToPrint)}]");
                    }
                }
                else if (command[0] == "first" && command[2] == "odd")
                {
                    var count = int.Parse(command[1]);
                    if (count > collection.Count)
                    {
                        Console.WriteLine("Invalid count");
                    }
                    else
                    {
                        var elemtsToPrint = collection.Where(x => x % 2 != 0).Take(count).ToList();
                        Console.WriteLine($"[{string.Join(", ", elemtsToPrint)}]");
                    }
                }
                else if (command[0] == "last" && command[2] == "even")
                {
                    var count = int.Parse(command[1]);
                    if (count > collection.Count)
                    {
                        Console.WriteLine("Invalid count");
                    }
                    else
                    {
                        var elemtsToPrint = collection.Where(x => x % 2 == 0).TakeLast(count).ToList();
                        Console.WriteLine($"[{string.Join(", ", elemtsToPrint)}]");
                    }
                }
                else if (command[0] == "last" && command[2] == "odd")
                {
                    var count = int.Parse(command[1]);
                    if (count > collection.Count)
                    {
                        Console.WriteLine("Invalid count");
                    }
                    else
                    {
                        var elemtsToPrint = collection.Where(x => x % 2 != 0).TakeLast(count).ToList();
                        Console.WriteLine($"[{string.Join(", ", elemtsToPrint)}]");
                    }
                }
            }

            Console.WriteLine($"[{string.Join(", ", collection)}]");
        }
    }
}