def person(name , age):
    print(name)
    print(age)

person(age=28,name='navin')


def person(name , age=18):
    print(name)
    print(age)

person('navin')


def sum(*b):

   c = 0
   for i in b:
       c = c + i

   print(c)

sum(5,6,34,78)

