Predicate Party! - Exercise: Functional Programming - C# Advanced

using System; using System.Linq; using System.Collections.Generic; namespace Homework_10 {class Program {static void Main (string [] args) {var names = Console.ReadLine (). Split ('', StringSplitOptions.RemoveEmptyEntries) .ToList (); Func <List <string>, string, List <string>> starts = (collection, command) => collection.FindAll (x => x.StartsWith (command)); Func <List <string>, string, List <string>> ends = (collection, command) => collection.FindAll (x => x.EndsWith (command)); Func <List <string>, string, List <string>> length = (collection, command) => collection.FindAll (x => x.Length == int.Parse (command)); while (true) {var command = Console.ReadLine (). Split ('', StringSplitOptions.RemoveEmptyEntries); if (command.Length! = 1) {if (command [1] == "StartsWith") {if (command [0] == "Double") {names.AddRange (starts (names, command [2])))); } else if (command [0] == "Remove") {starts (names, command [2]). ForEach (x => names.Remove (x)); }} else if (command [1] == "EndsWith") {if (command [0] == "Double") {names.AddRange (ends (names, command [2])))); } else if (command [0] == "Remove") {ends (names, command [2]). ForEach (x => names.Remove (x)); }} else if (command [1] == "Length") {if (command [0] == "Double") {names.AddRange (length (names, command [2])); } else if (command [0] == "Remove" ) {length (names, command [2]). ForEach (x => names.Remove (x)); }}} if (command [0] == "Party!") {break; }} names.Sort (); if (names.Count! = 0) {Console.WriteLine (string.Join (",", names) + "are going to the party!"); } else {Console.WriteLine ("Nobody is going to the party!"); }}}}

Hello, my solution for this task passes all the tests except one Omegle and omegle chat I do not understand where I am wrong. Thank you for any help.