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.

[[41, -34, 4, 47, -36], [-50, 2], [1, 48, -41]]
[4896, -100, 48]