using System;

public class Program

{

    public static void Main()

    {

      Console.WriteLine("Enter you birthday: DD.MM.YYYY");

            string birthDay = Console.ReadLine();

            string userYear = birthDay.Substring(6, 4);

            int userYearInt = int.Parse(userYear);

            string userMonth = birthDay.Substring(3, 2);

            int userMonthInt = int.Parse(userMonth);

            string userDay = birthDay.Substring(0, 2);

            int userDayInt = int.Parse(userDay);

​

            try

            {

                switch (userMonthInt)

                {

                    case 01:

                        {

                            string userMonthStr = "January";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 02:

                        {

                            string userMonthStr = "February";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 03:

                        {

                            string userMonthStr = "March";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 04:

                        {

                            string userMonthStr = "April";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 05:

                        {

                            string userMonthStr = "May";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 06:

                        {

                            string userMonthStr = "June";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 07:

                        {

                            string userMonthStr = "July";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 08:

                        {

                            string userMonthStr = "August";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 09:

                        {

                            string userMonthStr = "September";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 10:

                        {

                            string userMonthStr = "October";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 11:

                        {

                            string userMonthStr = "November";

                            userMonth = userMonthStr;

                            break;

                        }

                    case 12:

                        {

                            string userMonthStr = "December";

                            userMonth = userMonthStr;

                            break;

                        }

                    default:

                        {

                            Console.WriteLine("Wrong input.");

                            break;

                        }

                }

            }

            catch (Exception e)

            {

                throw e;

            }

​

            Console.WriteLine("User birthday:\nYear: {0}\nMonth: {1}\nDay: {2}", userYear, userMonth, userDay);

​

            int currentYearInt = DateTime.Now.Year;

            Console.WriteLine("Current year is: {0}", currentYearInt);

            int currentMonthInt = DateTime.Now.Month;

            Console.WriteLine("Current month is: {0}", currentMonthInt);

            int currentDayInt = DateTime.Now.Day;

            Console.WriteLine("Current day is: {0}", currentDayInt);

​

            //I think I could use these but I don't know how

            //DateTime userBirthDay = new DateTime(userYearInt, userMonthInt, userDayInt);

            //DateTime currentTime = new DateTime(currentYearInt, currentMonthInt, currentDayInt);

​

            int userAge = 0;

            userAge = currentYearInt - userYearInt;

​

​

            var test = DateTime.Today;  // Ново

​

            if (test.Day >= userDayInt && test.Month >= userMonthInt) // Ново

            {

                Console.WriteLine("User age is: {0}", userAge);

​

                int ageAfterTenYears = 0;

                ageAfterTenYears = userAge + 10;

                Console.WriteLine("After ten years user will be {0} years old.", ageAfterTenYears);

            }

            else

            {

                Console.WriteLine("User age is: {0}", userAge - 1);

​

                int ageAfterTenYears = 0;

                ageAfterTenYears = userAge + 10;

                Console.WriteLine("After ten years user will be {0} years old.", ageAfterTenYears - 1);

            }

}

}