python 输入一个数n,求n个数求乘或求和的实例

try:
 while True:
  n=input()
  s=1
  for x in raw_input().split():
   s=s+int(x)
  print s
except EOFError:
 exit()

try:
 while True:
  n=input()
  s=1
  for x in raw_input().split():
   s=s*int(x)
  print s
except EOFError:
 exit()