import java.util.*;
import java.lang.*;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		int year = Integer.parseInt(s.substring(0, 4));
		int month = Integer.parseInt(s.substring(5, 7));
		int day = Integer.parseInt(s.substring(8, 10));
		if (year > 2019 || (year == 2019 && month > 4)) {
			System.out.println("TBD");;
		} else {
			System.out.println("Heisei");
		}
	}
}
/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