import java.util.*;

class Main{
	public static void main(String args[]){
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		int a = Integer.parseInt(s.substring(0,4));
		int b = Integer.parseInt(s.substring(5,7));
		int c = Integer.parseInt(s.substring(8,10));
		int ans = a*10000+b*100+c;
		if(ans > 20190430){
			System.out.print("TBD");
		}else{
			System.out.print("Heisei");
		}
		//System.out.print(ans);
	}
}

/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