import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String s = scan.next();
        String[] ymd = s.split("/");
        int month = Integer.parseInt(ymd[1]);
        int day = Integer.parseInt(ymd[2]);
        if (month < 4) {
            System.out.println("Heisei");
        } else if (month == 4 && day <= 30) {
            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