import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String s = sc.next();
    int y = Integer.parseInt(s.substring(0, 4));
    int m = Integer.parseInt(s.substring(5, 7));
    int d = Integer.parseInt(s.substring(8));
    String ans = "TBD";
    if(y < 2019) {
      ans = "Heisei";
    } else if(y == 2019) {
      if(m < 4) {
        ans = "Heisei";
      } else if(m == 4) {
        if(d <= 30) ans = "Heisei";
      }
    }
    System.out.println(ans);
  }
}
/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