import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String S = sc.next();
    if (Integer.valueOf(S.substring(0, 4)) <= 2019) {
      if (Integer.valueOf(S.substring(5, 6)) != 0) {
        System.out.println("TBD");
        return;
      }
      if (Integer.valueOf(S.substring(6, 7)) < 5 && (int) Integer.valueOf(S.substring(8, 10)) < 31) {
        System.out.println("Heisei");
        return;
      }
    }
    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