import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String S = sc.nextLine();
        String[] s = S.split("/");
        int year = Integer.parseInt(s[0]);
        int month = Integer.parseInt(s[1]);
        int day = Integer.parseInt(s[2]);
        if (month>4) {
            System.out.println("TBD");
        } else {
            System.out.println("Heisei");
        }
    }
}

/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