ArrayManipulator

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

namespace ArrayManipulator
{
    class ArrayManipulator
    {
        static List<int> array;

        static void Main(string[] args)
        {
            array = Console.ReadLine().Split().Select(int.Parse).ToList();

            string inputLine = Console.ReadLine().ToLower();
            while (!inputLine.Equals("end"))
            {
                string[] commandInfo = inputLine.Split().ToArray();

                if (commandInfo[0].Equals("exchange"))
                {
                    int index = int.Parse(commandInfo[1]);

                    if (index < 0 || index >= array.Count)
                    {
                        Console.WriteLine("Invalid index");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    int[] subSequence = array.TakeWhile((x, i) => i <= index).ToArray();
                    array.RemoveRange(0, index + 1);
                    array.InsertRange(array.Count, subSequence);
                }
                else if (commandInfo[0].Equals("max") && commandInfo[1].Equals("even"))
                {
                    int maxEven = 0;
                    int index = 0;
                    try
                    {
                        maxEven = array.Where(x => x % 2 == 0).Max();
                        index = array.LastIndexOf(maxEven);
                    }
                    catch (Exception)
                    {
                        Console.WriteLine("No matches");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    Console.WriteLine(index);
                }
                else if (commandInfo[0].Equals("max") && commandInfo[1].Equals("odd"))
                {
                    int maxOdd = 0;
                    int index = 0;
                    try
                    {
                        maxOdd = array.Where(x => x % 2 != 0).Max();
                        index = array.LastIndexOf(maxOdd);
                    }
                    catch (Exception)
                    {
                        Console.WriteLine("No matches");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    Console.WriteLine(index);
                }
                else if (commandInfo[0].Equals("min") && commandInfo[1].Equals("even"))
                {
                    int minEven = 0;
                    int index = 0;
                    try
                    {
                        minEven = array.Where(x => x % 2 == 0).Min();
                        index = array.LastIndexOf(minEven);
                    }
                    catch (Exception)
                    {
                        Console.WriteLine("No matches");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    Console.WriteLine(index);
                }
                else if (commandInfo[0].Equals("min") && commandInfo[1].Equals("odd"))
                {
                    int minOdd = 0;
                    int index = 0;
                    try
                    {
                        minOdd = array.Where(x => x % 2 != 0).Min();
                        index = array.LastIndexOf(minOdd);
                    }
                    catch (Exception)
                    {
                        Console.WriteLine("No matches");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    Console.WriteLine(index);
                }
                else if (commandInfo[0].Equals("first") && commandInfo[2].Equals("even"))
                {
                    int count = int.Parse(commandInfo[1]);

                    if (count > array.Count)
                    {
                        Console.WriteLine("Invalid count");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    List<int> firstEven = new List<int>();
                    foreach (int num in array)
                    {
                        if (firstEven.Count == count)
                        {
                            break;
                        }

                        if (num % 2 == 0)
                        {
                            firstEven.Add(num);
                        }
                    }

                    Console.WriteLine($"[{string.Join(", ", firstEven)}]");
                }
                else if (commandInfo[0].Equals("first") && commandInfo[2].Equals("odd"))
                {
                    int count = int.Parse(commandInfo[1]);

                    if (count > array.Count)
                    {
                        Console.WriteLine("Invalid count");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    List<int> firstOdd = new List<int>();
                    foreach (int num in array)
                    {
                        if (firstOdd.Count == count)
                        {
                            break;
                        }

                        if (num % 2 != 0)
                        {
                            firstOdd.Add(num);
                        }
                    }

                    Console.WriteLine($"[{string.Join(", ", firstOdd)}]");
                }
                else if (commandInfo[0].Equals("last") && commandInfo[2].Equals("even"))
                {
                    int count = int.Parse(commandInfo[1]);

                    if (count > array.Count)
                    {
                        Console.WriteLine("Invalid count");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    List<int> lastEven = new List<int>();
                    for (int currElement = array.Count - 1; currElement >= 0; currElement--)
                    {
                        if (lastEven.Count == count)
                        {
                            break;
                        }

                        if (array[currElement] % 2 == 0)
                        {
                            lastEven.Add(array[currElement]);
                        }
                    }

                    Console.WriteLine($"[{string.Join(", ", lastEven)}]");
                }
                else if (commandInfo[0].Equals("last") && commandInfo[2].Equals("odd"))
                {
                    int count = int.Parse(commandInfo[1]);

                    if (count > array.Count)
                    {
                        Console.WriteLine("Invalid count");
                        inputLine = Console.ReadLine().ToLower();
                        continue;
                    }

                    List<int> lastOdd = new List<int>();
                    for (int currElement = array.Count - 1; currElement >= 0; currElement--)
                    {
                        if (lastOdd.Count == count)
                        {
                            break;
                        }

                        if (array[currElement] % 2 != 0)
                        {
                            lastOdd.Add(array[currElement]);
                        }
                    }

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

                inputLine = Console.ReadLine().ToLower();
            }

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