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 (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>

int main()
{
    char s[11];
    scanf("%s",s);

    int len = strlen(s);
    long long ymd = 0,mul = 1;

    for (int i = len - 1; i >= 0; i--)
    {
        if(s[i] == '/')
        {
            continue;
        }
        else
        {
            ymd += mul * (int)(s[i] - '0');
            mul *= 10;
        }
    }
    if(20190430 >= ymd)
    {
        printf("Heisei");
    }
    else
    {
        printf("TBD");
    }
    
}