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;

namespace A
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            string s = Console.ReadLine();
            string[] date = s.Split('/');
            System.Collections.Generic.List<int> d
                = new System.Collections.Generic.List<int>();
            foreach(var str in date) d.Add(int.Parse(str));
            DateTime dateTime = new DateTime(d[0], d[1], d[2]);
            DateTime TBD = new DateTime(2019, 4, 30);
            if (dateTime <= TBD) Console.WriteLine("Heisei");
            else Console.WriteLine("TBD");
        }
    }
}