Christmas Banter

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

namespace ConsoleApplication52
{
    class Program
    {
        static List<string> Nice = new List<string>();
        static List<string> Naughty = new List<string>();
        static void Main(string[] args)
        {

            bool conti = true;

            while (conti)
            {



                Console.WriteLine("Welcome to the Christmas data base.");
                Console.WriteLine(" 1) Add New Child");
                Console.WriteLine(" 2) View Nice");
                Console.WriteLine(" 3) View Naughty");
                Console.WriteLine(" 4) Remove Child from List once present has been delivered");
                Console.WriteLine(" 5) Compare Lists to ensure child hasn't been added to both lists");
                int input = Convert.ToInt32(Console.ReadLine());



                if (input == 1)
                {
                    Console.WriteLine("Please select which list you would like to add a child to");
                    string option = Console.ReadLine();
                    if (option == "nice")
                    {
                        Console.WriteLine("Please add the child to the NICE list");
                        Nice.Add(Console.ReadLine());
                    }
                    else if (option == "naughty")
                    {
                        Console.WriteLine("Please add the child to the NAUGHTY list");
                        Naughty.Add(Console.ReadLine());
                    }
                }

                if (input == 2)
                {
                    Console.Clear();
                    Console.WriteLine("Viewing Nice List");
                    foreach (string item in Nice)
                    {
                        Console.WriteLine(item);
                    }
                    Console.WriteLine("Total children on list = " + Nice.Count);
                }

                if (input == 3)
                {
                    Console.Clear();
                    Console.WriteLine("Viewing Naughty List");
                    foreach (string item in Naughty)
                    {
                        Console.WriteLine(item);
                    }
                    Console.WriteLine("Total children on list = " + Naughty.Count);
                }

                if (input == 4)
                {

                    Console.WriteLine("Which list does the child need removing from?");
                    string remove = Console.ReadLine();
                    if (remove == "nice")
                    {
                        foreach (string item in Nice)
                        {
                            Console.WriteLine(item);
                        }
                        Console.WriteLine("Which Child needs removing?");
                        string childremove = Console.ReadLine();
                        if (Nice.Contains(childremove))
                        {
                            Nice.Remove(childremove);
                            Console.WriteLine("Removing child " + childremove);
                        }

                    }
                    if (remove == "naughty")
                    {
                        foreach (string item in Naughty)
                        {
                            Console.WriteLine(item);
                        }
                        Console.WriteLine("Which Child needs removing?");
                        string childremove = Console.ReadLine();
                        if (Nice.Contains(childremove))
                        {
                            Naughty.Remove(childremove);
                            Console.WriteLine("Removing child " + childremove);
                        }
                    }
                }

                if (input == 5)
                {

                    bool isFound = false;
                    foreach (string x in Naughty)
                    {
                     if (Nice .Contains(x))
                    {
                      isFound = true;
                      Console.WriteLine("This child is one both lists! They need removing from one of the lists!");
                    }
                   }
                }












                    Console.WriteLine("Return to menu?");
                    string decision = Console.ReadLine();
                    if (decision == "yes")
                    {
                        conti = true;
                        Console.Clear();
                    }
                    else if (decision == "no")
                    {
                        conti = false;
                    }
                }

            }
        }
    }

     ///   {
    ///                Nice.Sort();
    ///                Console.WriteLine(Nice);
    ///                foreach (string item in Nice)
     ///               {
     ///                   Console.WriteLine(item);
     ///               }

     ///           }