
y,m,d=map(int,input().split('/'))

if (y<=2019 and m<=4 and d<=30):print('Heisei')
else:print('TBD') y,m,d=map(int,input().split('/')) y map(int,input().split('/')) map int input().split('/') ().split () input split '/' m d if (y<=2019 and m<=4 and d<=30):print('Heisei')
else:print('TBD') y<=2019 and m<=4 and d<=30 y<=2019 and m<=4 y<=2019 y 2019 m<=4 m 4 d<=30 d 30 y,m,d=map(int,input().split('/')) map(int,input().split('/')) y m,d=map(int,input().split('/')) map(int,input().split('/')) m d=map(int,input().split('/')) map(int,input().split('/')) d

y,m,d=map(int,input().split('/'))

if (y<=2019 and m<=4 and d<=30):print('Heisei')
else:print('TBD')