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: [[16, -32, 12, -25, 42], [-34, 19, -13, -47], [31, 42], [-27, 19, 37, 19, -35], [49, -42, 18], [-39, 48, 29], [20, 32], [29, 7, 39, 37, -18], [6, 12]]
Output:
[-258048, -34, 42, 0, -756, 48, 640, -18, 72]