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

        String answer = "Heisei";
        int year, month, day;
        year = Integer.parseInt(s.substring(0,4));
        month =  Integer.parseInt(s.substring(5,7));
        
        if(year > 2019) answer = "TBD";
        if(year == 2019 && month >= 5) answer = "TBD";

        System.out.println(answer);
    }
}
/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