using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        bool year;

        List<string> months;

        Console.WriteLine("Welcome to the month guessing game!");

        Console.WriteLine("I will try to guess your birth month and age!");

        bool playing = true;

        while (playing == true) {

            Console.WriteLine("Alright, so first of all are you born in 2008 or 2007?");

            string answer = Console.ReadLine();

            if (answer == "2007") {

                year = true;

                months = new List<string>{ "September", "October", "November", "December"};

            }

            else {

                year = false;

                months = new List<string>{ "Janurary", "February", "March", "April", "May", "June", "July", "August"};

            }

            if (year == true) {

                bool i = true;

                while (i == true) {

                    if (months.Count == 0) {

                        playing = false;

                        Console.WriteLine("You must've put in the wrong year!");

                        months = new List<string>{ "Janurary", "February", "March", "April", "May", "June", "July", "August"};

                        playing = true;

                    }

                    var random = new Random();

                    int index = random.Next(months.Count);

                    Console.WriteLine("I guess...");

                    Console.WriteLine(months[index]);

                    Console.WriteLine("Was this correct?");

                    Console.WriteLine("Type yes or no?");

                    string ans2 = Console.ReadLine();

                    if (ans2 == "yes" || ans2 == "Yes") {

                        i = false;

                        Console.WriteLine("Im a genius!");

                        playing = false;

                    }

                    else {

                    months.RemoveAt(index);

                    }

                }

            }

            if (year == false) {

                bool i = true;

                while (i == true) {

                    if (months.Count == 0) {

                        playing = false;

                        Console.WriteLine("You must've put in the wrong year!");

                            months = new List<string>{ "September", "October", "November", "December"};

                        playing = true;

                    }

                    Random rnd = new Random();

                    int index2 = rnd.Next(months.Count);

                    Console.WriteLine("I guess...");

                    Console.WriteLine(months[index2]);

                    Console.WriteLine("Was this correct?");

                    Console.WriteLine("Type yes or no?");

                    string ans2 = Console.ReadLine();

                    if (ans2 == "yes" || ans2 == "Yes") {

                        i = false;

                        Console.WriteLine("Im a genius!");

                        playing = false;

                    }

                    else {

                        months.RemoveAt(index2);

                    }

                }

            }

        }

    }

}