Problem 15 Homelork Introdusing to programming

using System;
/* Write a program to read your birthday from the console
 * and print how old you are now and how old you will be after 10 years. */
class MyAgeAfter10Years
{
    static void Main()
    {
        Console.WriteLine("Enter your birth date:");
        DateTime birthDate;
        DateTime currentDate = DateTime.Now;

        if (DateTime.TryParse(Console.ReadLine(), out birthDate))
        {
            Console.WriteLine("You are {0} years old, after 10 years you will be {1} years old.", (currentDate.Year - birthDate.Year), (currentDate.Year - birthDate.Year + 10));
        }
        else
        {
            Console.WriteLine("You have entered not a valid birth date!");
        }
    }
}