You will be given a definition of a task first, then some input of the task.
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, -27], [-38, 35, -7, 19, 16], [33, -41, -14, 6, 16], [46, 18, 4], [-11, 50, 8]]
Output:
[-10, -608, -1344, 3312, 400]