import java.util.*;
import java.text.SimpleDateFormat;
 
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd");
        try {
          Date date = format.parse(sc.next());
          Date last = format.parse("2019/04/30");
    
		  // 出力
		  System.out.println(date.after(last) ? "TBD" : "Heisei");
        } catch (Exception e) {
        }
	}
}
/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