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.

[[10, 39, 34], [13, 17, -50, -1], [-31, -35, -24], [44, -17, 46, -37]]
[340, -50, -24, 2024]