# Ces programmes sont sous licence CeCILL-B V1.

nom = ["" for i in range(0,10)]
tel = ["" for i in range(0,10)]

# Remplissage du répertoire
nom[0] = "Alice"
tel[0] = "0606060606"
nom[1] = "Bob"
tel[1] = "0606060607"
nom[2] = "Charles"
tel[2] = "0606060608"
nom[3] = "Djamel"
tel[3] = "0606060609"
nom[4] = "Étienne"
tel[4] = "0606060610"
nom[5] = "Frédérique"
tel[5] = "0606060611"
nom[6] = "Guillaume"
tel[6] = "0606060612"
nom[7] = "Hector"
tel[7] = "0606060613"
nom[8] = "Isabelle"
tel[8] = "0606060614"
nom[9] = "Jérôme"
tel[9] = "0606060615"

# Recherche du numéro associé au nom s
s = input()
i = 0
while i < 10 and s != nom[i]:
  i = i + 1
if i < 10:
  print(tel[i])
else:
  print("Inconnu")