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 Kotlin (1.0.0) (judge verdict: Accepted)

fun main(args: Array<String>) {
    val S = readLine()!!
    val y = S.take(4).toInt()
    val m = S.substring(5..6).toInt()
    val d = S.takeLast(2).toInt()
    val ans = when {
        y < 2019 -> "Heisei"
        y == 2019 -> when {
            m < 4 -> "Heisei"
            m == 4 -> when {
                d <= 30 -> "Heisei"
                else -> "TBD"
            }
            else -> "TBD"
        }
        else -> "TBD"
    }
    println(ans)
}