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)

line = gets
line.chomp!

/(\d+)\/(\d+)\/(\d+)/ =~ line
y = $1.to_i             
m = $2.to_i
d = $3.to_i

if (y < 2019) then
  print "Heisei"
elsif (y == 2019) then
  if (m < 4) then
    print "Heisei"
  elsif (m == 4) then
    if (d <= 30) then
      print "Heisei"
    else
      print "TBD"
    end
  else
    print "TBD"
  end
else
  print "TBD"
end