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;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtCoder_ABC
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] strs = Console.ReadLine().Split('/');
            DateTime date = new DateTime(int.Parse(strs[0]), int.Parse(strs[1]), int.Parse(strs[2]));
            DateTime date0 = new DateTime(2019, 4, 30);

            bool heiseiFlag = date <= date0;


            Console.WriteLine(heiseiFlag? "Heisei" : "TBD");
        }
    }
}