import java.util.Scanner;
class Main
{
	public static void main(String args[])
	{
		Scanner sc=new Scanner(System.in);
        String s=sc.next();
        String year0=s.substring(0,4);
        int year1=Integer.parseInt(year0);
        String day0=s.substring(8);
        int day1=Integer.parseInt(day0);

        if(year1<=2019){
            if(s.charAt(5)=='0'&&s.charAt(6)<='4'){
                if(day1<=30){
                    System.out.println("Heisei");
                }
                else{
                    System.out.println("TBD");
                }
            }
            else{
                System.out.println("TBD");
            }
        }
        else{
            System.out.println("TBD");
        }
        sc.close();
    }
}
/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