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.

Example Input: [[-10, -39, 40], [-5, 36, -28, 48], [5, -50, 31, 10, -16]]
Example Output: [-400, -48384, 8000]

Example Input: [[2, 31, 49], [7, -48], [-5, 16, 2, 28]]
Example Output: [2, -48, 896]

Example Input: [[-8, -1, -12], [38, 17, -12], [35, -40, -6], [-5, -15, 43, -42], [-46, -38, 46, -49, 30]]
Example Output:
[96, -456, 240, -42, 2412240]