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

        String val = S.substring(0,4);
        int yyyy = Integer.parseInt(val);

        String val2 = S.substring(5, 7);
        int mm = Integer.parseInt(val2);

        if ((yyyy == 2019 && mm < 5) || yyyy <= 2018) {
            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