import java.util.*;
public class Main {
    public static void main(String[] args){
        String[] cal;
        Scanner sc = new Scanner(System.in);
        String S = sc.nextLine();
        String[] difs = S.split("/");
        int dif0 = Integer.parseInt(difs[0]);
        int dif1 = Integer.parseInt(difs[1]);
        int dif2 = Integer.parseInt(difs[2]);
        if(dif0 <= 2019 && dif1 <= 4 && dif2 <= 30){
            System.out.print("Heisei");
        }else{
            System.out.print("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