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)

y, m, _d = gets.split("/").map(&:to_i)

if y >= 2019 && m >= 5
  # 2019/05以降はTBD
  puts "TBD"
elsif y == 2019 && m <= 4
  # 2019/01~04はHeisei
  puts "Heisei"
elsif y <= 2018
  # 2018以前はHeisei
  puts "Heisei"
end