import java.util.*;
import java.text.*;

public class Main {
    public static void main(String[] args) throws Exception{
      Scanner sc = new Scanner(System.in);
      String s = sc.nextLine();
      String[] list = s.split("/");
      if (Integer.parseInt(list[0]) < 2019) {
        System.out.println("Heisei");
        System.exit(0);
      }
      if (Integer.parseInt(list[0]) == 2019 && Integer.parseInt(list[1]) < 4) {
        System.out.println("Heisei");
        System.exit(0);  
      }
      if (Integer.parseInt(list[0]) == 2019 && Integer.parseInt(list[1]) <= 4 && Integer.parseInt(list[2]) < 31) {
        System.out.println("Heisei");
        System.exit(0);  
      }

      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