import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
    
    String year = S.substring(0, 4);
    String month = S.substring(5, 7);
    String day = S.substring(8);
    
    int yearInt = Integer.parseInt(year);
    int monthInt = Integer.parseInt(month);
    int dayInt = Integer.parseInt(day);
    
    if (yearInt <= 2018) {
      System.out.println("Heisei");
    } else if (yearInt == 2019 && monthInt <= 4) {
      System.out.println("Heisei");
    } else {
      System.out.println("TBD");
    }
  }
}
/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