import java.util.*;
class Main{
    public static void main(String[] args){

        Scanner scan = new Scanner(System.in);
        String S = scan.next();

        String[] s = S.split("/",0);

        int year = Integer.parseInt(s[0]);
        int month = Integer.parseInt(s[1]);
        int day = Integer.parseInt(s[2]);

        if(year<2019){
            System.out.println("Heisei");
        }else if(year==2019){
            if(month>=5){
                System.out.println("TBD");
            }else{
                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