import java.util.Scanner;
import java.util.Locale;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Main {
  public static void main(String[] args ){

    Scanner sc = new Scanner(System.in);
    String dateStr = sc.next();

    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd");
    LocalDate date = LocalDate.parse(dateStr, formatter);
    LocalDate reiwa = LocalDate.of(2019, 4, 30);

    System.out.println(date.isAfter(reiwa) ? "TBD" : "Heisei" );

  }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz