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.

[[39, -45, -42, -21, 23], [48, -36, 2], [22, -46], [-17, -11], [-49, -20, 8]]

[-42, -3456, -1012, 0, -160]