# 2206.py

# Dalla nota 10.7.
def somma (*a):
  s=0
  for x in a: s+=x
  return s

v=[1,2,4,9,16]
print somma(*v)
# 32

def f (x,y,*a): return [x,y]+list(a)

print f(0,1,*v)
# [0, 1, 1, 2, 4, 9, 16]