import java.util.Scanner;

public class Main{
  public static void heisei(){
    System.out.println("Heisei");
  }

  public static void tbd(){
    System.out.println("TBD");
  }


  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);

    String s = sc.next();
    String ss = s.replace("/","");

    if(ss.compareTo("20190430")<=0){
      heisei();
    }else{
      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