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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <iostream>

using namespace std;

int main()
{
  string S;
  cin >> S;

  int Y,M,D;

  Y = stoi(S.substr(0, 4));
  M = stoi(S.substr(5, 2));
  D = stoi(S.substr(8, 2));

  if (Y < 2019) {
    cout << "Heisei" << endl;
    return 0;
  } else if (Y == 2019) {
    if (M < 4) {
      cout << "Heisei" << endl;
      return 0;
    } else if (M == 4) {
      if (D <= 30)
        cout << "Heisei" << endl;
      else
        cout << "TBD" << endl;
    } else
      cout << "TBD" << endl;
  } else
    cout << "TBD" << endl;

  return 0;
}