Definition: In this task you will be given a list, of lists, of integers. For every inner list contained in the input list, you should multiply every even number in that list. The output should be a list of integers with the same length as the number of lists in the input list. If there are no even numbers in an inner list you should output 0 for that list.
Input: [[42, 36], [3, -33, -42, 2], [26, 20, -15, 5, -23], [-41, 45]]
Output:
[1512, -84, 520, 0]