#A new program called sum_difference.
#This program will return the difference between two list.
def sum_difference(o, c):
#the function have been defined.


    if sum(o) > sum(c):
        return sum(o) - sum(c)
    else:
        sum(c) - sum(o)
#this determine the positive different between the two list o and c
sum_difference([2, 3, 7, 9],[6, 0, 5, 6])