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.

[[15, 21, 34, 46], [17, -26], [0, -41, -27, 37], [20, -40, -48], [-1, 5, 16, 35], [-39, 1, -15, -30, -38], [-45, -21, -12, -14, 48], [-43, 21, 14, -40, 3]]
Output:
[1564, -26, 0, 38400, 16, 1140, 8064, -560]