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.Linq;

namespace _2019024AtCoderA
{
    public class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(EvalEra(Console.ReadLine()));
        }

        public static string EvalEra(string input)
        {
            var yyyymmdd = input.Split('/').Select(int.Parse);
            var year = yyyymmdd.ElementAt(0);
            if (2019 > year)
            {
                return "Heisei";
            }
            var month = yyyymmdd.ElementAt(1);
            if (year == 2019 && 4 >= month)
            {
                return "Heisei";
            }
            return "TBD";
        }
    }
}