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

		if ( m >= 5 ){
			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