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 Rust (1.42.0) (judge verdict: Accepted)

use proconio::{fastout, input};
use std::collections::BinaryHeap;

#[fastout]
fn main() {
    input! {
        s: String
    };

    let mut set = BinaryHeap::new();
    set.push("2019/04/30");
    set.push(&s);

    if set.pop().unwrap() != "2019/04/30" && s != "2019/04/30" {
        println!("TBD")
    } else {
        println!("Heisei")
    }
}