Problem:
Score : 100 points

Problem Statement

You are given a string S as input. This represents a valid date in the year 2019 in the yyyy/mm/dd format. (For example, April 30, 2019 is represented as 2019/04/30.)

Write a program that prints Heisei if the date represented by S is not later than April 30, 2019, and prints TBD otherwise.

Constraints

S is a string that represents a valid date in the year 2019 in the yyyy/mm/dd format.

Input

Input is given from Standard Input in the following format:

S

Output

Print Heisei if the date represented by S is not later than April 30, 2019, and print TBD otherwise.

Sample Input 1

2019/04/30

Sample Output 1

Heisei

Sample Input 2

2019/11/01

Sample Output 2

TBD

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;

public class Test
{
	public static void Main()
	{
		string s = Console.ReadLine();
		int y = int.Parse(s.Substring(0,4));
		int m = int.Parse(s.Substring(5,2));
		int d = int.Parse(s.Substring(8,2));
		
		if(y>=2020){
			Console.WriteLine("TBD");
		}else if(y<=2018){
			Console.WriteLine("Heisei");
		}else if(m<=4){
			Console.WriteLine("Heisei");	
		}else{
			Console.WriteLine("TBD");
		}
		
	}
}