Given the task definition and input, reply with output. 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.

[[13, 28, -36, 31, 38], [39, -47, 41, -4], [45, -8, 20], [33, -4, 47]]

[-38304, -4, -160, -4]