Question: 
Write a python function to find the digit distance between two integers.


Model's Code:
def digit_distance_nums(num1, num2):
    return sum(abs(int(a) - int(b)) for a, b in zip(str(num1)[::-1], str(num2)[::-1])) + abs(len(str(num1)) - len(str(num2))) * 9



Sample Correct Code:
def digit_distance_nums(n1, n2):
         return sum(map(int,str(abs(n1-n2))))


Asserts:
assert digit_distance_nums(1,2) == 1
assert digit_distance_nums(23,56) == 6
assert digit_distance_nums(123,256) == 7


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 558 of 974: 413/558 (74.01433691756273%): success