Application of sum function

# This function returns the difference between the sum of the first list
# and the second list. It accepts two lists
def sum_difference(first, second):
    return sum(first) - sum(second)

print(sum_difference([1, 2, 3], [1, 2, 4]))
print(sum_difference([4, 5], [2, 6, 3]))
print(sum_difference([1], []))

# -1
# -2
# 1