import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        String day = sc.nextLine();
        String str[] = day.split("/");
        int a[] = new int[3];
        for (int i = 0; i < str.length; i++)
            a[i] = Integer.parseInt(str[i]);
        if (a[0] > 2019)
            System.out.println("TBD");
        else if (a[0] == 2019 && a[1] > 4)
            System.out.println("TBD");
        else if (a[0] == 2019 && a[1] > 4 && a[2] < 31)
            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