Predicate Party! - Functional Programming

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

namespace PredicateParty
{
    class Program
    {
        static void Main()
        {
            List<string> namesParty = Console.ReadLine()
                .Split()
                .ToList();

            CheckRequirements(namesParty);
            PrintComingToParty(namesParty);

        }

        static void CheckRequirements(List<string> partyPeople)
        {
            while (true)
            {
                string[] command = Console.ReadLine()
                    .Split(new char[] { ' ', '\n', '\r', '\t' }, StringSplitOptions.RemoveEmptyEntries);

                if (command[0] == "Party!")
                {
                    break;
                }

                switch (command[1])
                {
                    case "StartsWith":  //certain string
                        TakeActions(command[0], partyPeople, n => n.StartsWith(command[2]));
                        break;
                    case "EndsWith":
                        TakeActions(command[0], partyPeople, n => n.EndsWith(command[2]));
                        break;
                    case "Length": //check name length
                        TakeActions(command[0], partyPeople, l => l.Length == int.Parse(command[2]));
                        break;
                    default:
                        break;
                }
            }
        }
        static void TakeActions(string command, List<string> partyPeople, Func<string, bool> condition)
        {
            //if counting from 0, gives Memory Limit problem in Judge
            for (int i = partyPeople.Count - 1; i >= 0; i--)
            {
                if (condition(partyPeople[i]))
                {
                    switch (command)
                    {
                        case "Remove":
                            partyPeople.RemoveAt(i);
                            break;

                        case "Double":
                            partyPeople.Add(partyPeople[i]);
                            break;
                    }
                }
            }
        }
        static void PrintComingToParty(List<string> partyPeople)
        {
            if(partyPeople.Any())
            {
                Console.WriteLine(string.Join(", ", partyPeople) + " are going to the party!");
            }

            else
            {
                Console.WriteLine("Nobody is going to the party!");
            }
        }
    }
}