#include<bits/stdc++.h>
using namespace std;

int main()
{
	int a,b,c;
	scanf("%d/%d/%d",&a,&b,&c);
	int d=a*10000+b*100+c;
	if(d<=20190430)
	{
		cout<<"Heisei";
	}
	else
	{
		cout<<"TBD";
	}
}