using System;
using System.Collections.Generic;
using System.Text;


namespace ConsoleApp4
{
    class Program
    {


        static void Main(string[] args)
        {
            string name = "";
            string surname = "";
            string patronymic = "";
            int age;
            bool running = true;



            List<User> Userlist = new List<User>();
            string answer1 = "";
            Console.Write("Do you want to create new user? Y/N");
            Console.WriteLine();
            answer1 = Console.ReadLine();
            while (running)
            {
                if (answer1 == "Y" || answer1 == "y" || answer1 == "new_user")
                {
                    Console.Write("Name: ");
                    name = Console.ReadLine();
                    Console.Write("Surname: ");
                    surname = Console.ReadLine();
                    Console.Write("Patronymic: ");
                    patronymic = Console.ReadLine();
                    Console.Write("Age: ");

                    if (Int32.TryParse(Console.ReadLine(), out int x))
                    {
                        age = x;
                    }
                    else age = 1;
                    User newuser = new User()
                    {
                        Name = name,
                        Surname = surname,
                        Patronymic = patronymic,
                        Age = age
                    };
                    Userlist.Add(newuser);
                    answer1 = "";
                    Console.WriteLine("User successfully created!");
                    Console.WriteLine();
                }
                if (answer1 == "show_users")
                {

                    foreach (User user in Userlist){
                        Console.WriteLine($"{user.Surname} {user.Name} {user.Patronymic} – {user.Age} лет.");
                    }
                }
                Console.WriteLine();
                Console.WriteLine("What do you want now? Available commands: show_users, delete_user, new_user.");
                Console.WriteLine();
                answer1 = Console.ReadLine();

            }
            Console.WriteLine("Peezda");
            Console.ReadLine();
        }
    }
}