import java.util.Scanner;

public class Main {

    public static void main(String args[]) {

        Scanner sc = new Scanner(System.in);
        String[] s = sc.next().split("/");
        int year = Integer.parseInt(s[0]);
        int month = Integer.parseInt(s[1]);
        int date = Integer.parseInt(s[2]);

        String result = "TBD";
        if (year <= 2019 && month <= 4 && date <= 30) {
            result = "Heisei";
        }

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