import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
public class Main {
	public static void main(String[] args) throws ParseException {
	Scanner sc=new Scanner(System.in);

	String S=sc.next();
	SimpleDateFormat s=new SimpleDateFormat("yyyy/MM/dd");
	Date date1=s.parse(S);
	Date date=s.parse("2019/4/30");
	
	if((date1.compareTo(date)== -1)||(date1.compareTo(date)==0)) {
	System.out.print("Heisei");
	}
	
	else if(date1.compareTo(date)==1)  {
		System.out.print("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