import java.math.BigInteger;
import java.util.Scanner;

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

        String str = scanner.nextLine();

        String[] dateStrings = str.split("/");

        BigInteger tmp = new BigInteger(dateStrings[0] + dateStrings[1] + dateStrings[2]);

        BigInteger judgeDay = new BigInteger("20190430");

        if(0 <= judgeDay.compareTo(tmp)){
            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