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: Wrong Answer)

using System;

class Program
{
  static void Main(string[] args)
  {
    string[] input = Console.ReadLine().Split('/');
    int year = int.Parse(input[0]);
    int month = int.Parse(input[1]);
    int day = int.Parse(input[2]);
    
    if(year == 2019)
    {
      if(month <= 4) Console.WriteLine("heisei");
      else Console.WriteLine("TBD");
    }
    else if(year >= 2020) Console.WriteLine("TBD");
    else Console.WriteLine("heisei");
  }
}