07. List Manipulation Advanced

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

namespace ListManipulationAdvanced
{
    class ListManipulationAdvanced
    {
        static void Main()
        {
            List<int> nums = Console.ReadLine()
                .Split()
                .Select(int.Parse)
                .ToList();
            string command = Console.ReadLine();
            bool isChange = false;
            while (command != "end")
            {
                string[] tokens = command.Split();
                if (tokens[0] == "Add")
                {
                    int numberToAdd = int.Parse(tokens[1]);
                    nums.Add(numberToAdd);
                }
                if (tokens[0] == "Remove")
                {
                    int numberToRemove = int.Parse(tokens[1]);
                    nums.Remove(numberToRemove);
                }
                if (tokens[0] == "RemoveAt")
                {
                    int numberToRemoveAtIndex = int.Parse(tokens[1]);
                    nums.RemoveAt(numberToRemoveAtIndex);
                }
                if (tokens[0] == "Insert")
                {
                    int numberToAddInIndex = int.Parse(tokens[1]);
                    int indexToAdd = int.Parse(tokens[2]);
                    nums.Insert(indexToAdd, numberToAddInIndex);
                }
                if (tokens[0] == "Contains")
                {

                    int numberToCheck = int.Parse(tokens[1]);
                    bool isContains = nums.Contains(numberToCheck);
                    if (isContains)
                    {
                        Console.WriteLine("Yes");
                    }
                    else
                    {
                        Console.WriteLine("No such number");
                    }
                }
                if (tokens[0] == "PrintEven")
                {
                    PrintEvenNums(nums);
                    Console.WriteLine();
                }
                if (tokens[0] == "PrintOdd")
                {
                    PrintOddNums(nums);
                    Console.WriteLine();
                }
                if (tokens[0] == "GetSum")
                {
                    Console.WriteLine(nums.Sum());

                }
                if (tokens[0] == "Filter")
                {
                    int index = int.Parse(tokens[2]);
                    if (tokens[1] == ">=")
                    {
                        Console.WriteLine(string.Join(" ", nums.Where(x => x >= index)));
                    }
                }
                if (tokens[0] == "Filter")
                {
                    int index = int.Parse(tokens[2]);
                    if (tokens[1] == "<=")
                    {
                        Console.WriteLine(string.Join(" ", nums.Where(x => x <= index)));
                    }
                }
                if (tokens[0] == "Filter")
                {
                    int index = int.Parse(tokens[2]);
                    if (tokens[1] == "<")
                    {
                        Console.WriteLine(string.Join(" ", nums.Where(x => x < index)));
                    }
                }
                if (tokens[0] == "Filter")
                {
                    int index = int.Parse(tokens[2]);
                    if (tokens[1] == ">")
                    {
                        Console.WriteLine(string.Join(" ", nums.Where(x => x > index)));
                    }
                }
                if (tokens[0] == "Add" || tokens[0] == "Remove" || tokens[0] == "RemoveAt" || tokens[0] == "Insert" || tokens[0] == "Contains")
                {
                    isChange = true;
                    Console.WriteLine(string.Join(" ", nums).TrimEnd());
                }
                command = Console.ReadLine();
            }
        }
        private static void PrintEvenNums(List<int> numbers)
        {
            for (int i = 0; i < numbers.Count; i++)
            {
                int currentNum = numbers[i];
                if (currentNum % 2 == 0)
                {
                    Console.Write(currentNum + " ");
                }
            }
        }
        private static void PrintOddNums(List<int> numbers)
        {
            for (int i = 0; i < numbers.Count; i++)
            {
                int currentNum = numbers[i];
                if (currentNum % 2 != 0)
                {
                    Console.Write(currentNum + " ");
                }
            }
        }
    }
}