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 Ruby (2.3.3) (judge verdict: Accepted)

## Date.parse を使うとわかりやすい
require "date"  ## date.parse 等、外部ファイルを使う場合必須

s = gets.chomp#.split.map(&:to_i)

ans = Date.parse(s)

date = Date.parse("2019/04/30") # '2019/04/30'は文字列として認識

if ans <= date
  puts "Heisei"
else
  puts "TBD"
end