import java.util.*;
 
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();
        String[] sp = s.split("/");
        int y = Integer.parseInt(sp[0]);
        int m = Integer.parseInt(sp[1]);
        int d = Integer.parseInt(sp[2]);
        String ans = "Heisei";
        if(y > 2019) ans = "TBD";
        else if(y == 2019 && m > 4) ans = "TBD";
        System.out.println(ans);
    }
}
/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