# 1304.py

x=0; v=[]
while not x in v:
  v.append(x)
  x=(7*x+13)%17

for x in v: print x,
print
# 0 13 2 10 15 16 6 4 7 11 5 14 9 8 1 3

while 1:
  nome=raw_input('Come ti chiami? ')
  if nome=='': break
  print 'Ciao, %s!' %(nome)