4
def palin(num):
temp = list(num)[::-1]
tt = ''.join(temp)
if tt == num:
return True
else:
return False
x = raw_input("请输入一个多位自然数:")
print palin(x)
4
s=input("请输入五位数: ")
name=s
if name[0:4]==name[1:3]:
print("%s是回文数" % name)
else:
print("%s不是回文数" % name)