import java.util.Scanner;

public class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    final String S=sc.next();
    String[] s=S.split("/");
    int y=Integer.parseInt(s[0]);
    int m=Integer.parseInt(s[1]);
    int d=Integer.parseInt(s[2]);
    boolean flg=false;
    if(y<=2019){
      if(m<=4){
        if(d<=30){
          flg=true;
        }
      }
    }
    if(flg){
      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