import java.util.*;

public class Main {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        String x = sc.next();
        String[] y = x.split("/", 0);
        Calendar cl = Calendar.getInstance();
        cl.set(Integer.parseInt(y[0]), Integer.parseInt(y[1]), Integer.parseInt(y[2]));
        Calendar clh = Calendar.getInstance();
        clh.set(2019, 4, 30);
        if(clh.compareTo(cl) >= 0){
            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