import java.util.Scanner;

public class Birthday
{
	public static void main(String[] args)
	{
		final int THIS_MONTH=9;
		final int THIS_DAY=21;
		final int THIS_YEAR=2011;

		String name;
		int month;
		int day;
		int year;
		int age;

		Scanner in = new Scanner(System.in);
		
		System.out.print("What is your name? ");
		name=in.next();

		System.out.print("What month were you born? ");
		month=in.nextInt();
		System.out.print("What day were you born? ");
		day=in.nextInt();
		System.out.print("What year were you born? ");
		year=in.nextInt();
		
		System.out.println("Hello " + name);
		System.out.println("Your birthday is: " + month + "/" + day + "/" + year);
		if(THIS_MONTH>month)
		{
			age=THIS_YEAR-year;
		}
		else if(THIS_MONTH==month)
		{
			if(THIS_DAY>=day)
			{
				age=THIS_YEAR-year;
				if(THIS_DAY==day)
				{
					System.out.println("Happy birthday!");
				}
			}
			else
			{
				age=THIS_YEAR-year-1;
			}
		}
		else
		{
			age=THIS_YEAR-year-1;
		}
		System.out.println("You are " + age + " years old");
		
	}
}