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 (1.15.1) (judge verdict: Accepted)

fn serial(y:u32, m:u32, d:u32) -> u32 {
    d+m*30+y*30*12
}

fn main() {
    let mut buf = String::new();
    std::io::stdin().read_line(&mut buf).unwrap();
    let mut iter = buf.split('/');
    let y: u32 = iter.next().unwrap().parse().unwrap();
    let m: u32 = iter.next().unwrap().parse().unwrap();
    let d: u32 = iter.next().unwrap().trim().parse().unwrap();

    let heisei = serial(2019, 4, 30);

    let ans = if serial(y, m, d) <= heisei {
        "Heisei"
    }
    else {
        "TBD"
    };

    println!("{}", ans);
}