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: Wrong Answer)

def heisei(a)
  if(a[0].to_i>=2019)
    if(a[1].to_i>=4)
      if(a[2].to_i>30)
        return "TBD"
      end
    end
  end
  return "Heisei"
end
n = gets.chomp
a = n.split("/")
puts(heisei(a))