import java.util.Scanner;

public class Main {

	public static void main(String args[]) {

		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();

		int y = Integer.parseInt(s.substring(0, 4));
		int m = Integer.parseInt(s.substring(5, 7));
		int d = Integer.parseInt(s.substring(8, 10));

		if(y < 2019) {
			System.out.println("Heisei");
		}else if(y == 2019 && m < 4) {
			System.out.println("Heisei");
		}else if(y == 2019 && m == 4 && d <= 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